Thanks, Nick and hello, everyone. Altice USA has made a great start to 2019 as we continue to realize the benefits of our ongoing investments to improve the customer experience and deliver state-of-the-art connectivity services, advanced business solutions and high-quality content. Summarizing on Slide 3, in the first quarter, revenue growth was 2.9%, supported again by growth in all business segments. EBITDA growth was 5.3% on a reported basis, achieving our highest ever Q1 margin at 43.1%. Adjusting for $10 million of losses from the consolidation of i24 and minor mobile losses ahead of our launch, EBITDA growth would have been even higher at 6.7% with a margin of 43.7%. Operationally, 1 key highlight is that Altice One is now the best ever video customer performance for Altice USA. This makes us very pleased we decide to invest in our own proprietary video set-top box and broadband router, including the integration of linear and non-linear programming, vastly improved user interface and new features such as voice control. We continue to see increased customer demand for higher broadband speeds and significantly growing data usage. And Altice One has also contributed to a big enhancement in Wi-Fi performance. And we are facilitating this data usage growth with our continuous network upgrades, underpinning our broadband customer revenue and cash flow growth. We remain laser-focused on our new growth initiatives to diversify our revenues and maximize the potential of our core network assets and installed base of broadband and video customers. First mobile, where we're on track for a launch of some -- of services this summer; second, the acceleration of fiber-to-the-home and new-build activity; third, our differentiated advanced advertising business where we continue to deliver strong growth; and last, our latest initiative is our news business where we just this week announced the acquisition of Cheddar to fuel growth in news and advertising. Today, we reiterate all of our financial guidance for 2019, and would note we already bought back $600 million of shares in Q1 against our share repurchase program of $1.5 billion, which is approximately 16% of the free float since we started the buyback in Q3 2018. So we bought back about $1.1 billion of shares as Charlie will come back to later. Remember, we also recently engaged in a lot of refinancing activity reducing interest cost significantly and lengthening average maturity, putting us in a very strong balance sheet position. And finally, I couldn't be more proud of everything the company is achieving right now for, which I'd like to thank again all of our dedicated employees. The type of work environment we've created is now being recognized externally as Forbes recently named us as one of the Best Employers for 2019, and separately, we were recognized as the Best Place to Work For LGBTQ Equality for a perfect score of 100 on the Human Rights Campaign Foundation. Moving on to Slide 4, we show the components of total revenue growth, which was up 2.9% in Q1. This is at the high-end of the guidance range which we gave for the year of 2.5% to 3%. Our residential business grew 2.4% and business services grew 5.3%, consistent with recent trends. Advertising remains a strong growth business, up 6.8% in Q1. Recall our annual rate event too -- took effect at the end of Q1, so we are likely to have elevated revenue growth in Q2 for residential and business services. Moving on to Slide 5, on the left-hand side, shows residential ARPU growth of 2.1% to $143 with slight growth in our residential customer base year-over-year in Q1. The total number of unique residential customer relationships increased by 22,000 this quarter, which is a significant improvement compared to 8,000 net additions in Q1 2018. On the top right, you can see we had our best ever video trends in Q1 with just 10,000 net losses, including video customer growth at Suddenlink for the second consecutive quarter. Optimum did benefit compared to the prior-year quarter where performance was impacted by multiple snowstorms and a programming dispute. But even adjusting for this, we saw good underlying improvement in customer trends. This confirms what we started seeing last year as Altice One is helping to reduce churn, take market share from major satellite operators and the relative value proposition of virtual MVPDs and other streaming services has reduced, as they have been raising prices. We added 37,000 broadband net additions in Q1 2019, also demonstrating a significant improvement from 26,000 in Q1 2018. The rate event so far is going according to plan although, given the different timing this year, we would just be a little cautious about extrapolating the subscriber trends fully into Q2, which remember is also the seasonally weakest for Suddenlink. Slide 6 focuses on Altice One where we now have about 400,000 customers, representing about 12% penetration of our video customer base. With this product upgrade, we saw our highest ever video and broadband net promoter scores in Q1. This is supporting all of our churn statistics moving in the right direction, including early churn and survival rates relative to the legacy customer premise equipment. And the usage trends remain supportive with a significant number of customers using features such as voice control and over 40% using Netflix through our box. We continue to innovate the user interface and add additional features just like last week launching our 3.0 operating system, including personalized sports content and faster content navigation. Our core broadband service in Altice One product positions us very well as a cost effective and convenient TV content aggregator for customers, which is now really coming through in our results. Moving on to Slide 7, we show again, how we've been able to consistently provide higher and higher broadband speeds for customers following our network and CPE upgrades. On the left, you can see the average speed taken by customers has increased from 70 megabits to 191 megabit over the last 2 years, consistently growing every quarter. We are currently upgrading our Optimum cable plant to DOCSIS 3.1 and we're still on track to launch up to 1 gig services over coax at Optimum later this year, as well as we're adding more gigabit capacity at Suddenlink. Separately, we are also accelerating the rollout of our fiber network expanding gigabit symmetrical broadband services and smart Wi-Fi across Long Island, New Jersey, and Connecticut. This will put us in the position to offer 10 gigabit for 10G residential and SMB broadband services next year. On the right-hand side, you can see the average data usage is now over 280 gig per household per month and growing over 20% per year. We would note that broadband customers that do not take our video service are almost using twice the amount of data showing video streaming is still a massive growth driver for our broadband business. And the number of connected devices in the home is now 12 on average, with the top 10% of data consuming households having 26 connected devices on average. We still don't see any other network technology keeping pace with these broadband usage trends in the way that we are and with a high-quality cable and next-generation fiber plant. To be clear, we have seen no 5G fixed wireless launches in our footprint. We don't expect to see them anytime soon, given technical and economic constraints for mobile network operators, particularly because of the requirement for dense small cell deployments and as our revenue per gigabyte of usage is on average, so much lower and attractively priced. On Slide 8, moving on to our mobile strategy. We're on track for a full commercial launch this summer. Our full infrastructure-based MVNO approach has a number of benefits. With our partnership with Sprint, we deployed over 19,000 small cells in less than 1 year, representing the fastest rollout of its kind in the US and this has led to significant network performance improvements in our footprint. In return, we have relatively attractive wholesale economics compared to other MVNOs. Our core network infrastructure is ready to go, giving us full access control over the customer experience and allows us to better manage traffic. We have major mobile handset partnerships in place and have developed our IT platforms for digital-first experience. All this positions us to provide a great value proposition to our customers and the market. We are in a phase of heavy testing right now and have all the necessary tools and expertise in-house to make our mobile business a success. On Slide 9, I want to highlight Altice USA's news business service -- news business since we announced the acquisition of Cheddar this week. News 12 remains our most-watched channel on Optimum and continues to grow ratings and advertising revenues. News 12 is also the main source of local news among adults in the tri-state area according to a recent third-party study. We also brought i24NEWS into Altice USA last year, which focuses on international news and is now carried by almost all of the major MVPDs. Cheddar is a digital-first business news, general news and college network focused on young professionals and millennials. Cheddar has distribution of approximately 40 million households and records over 400 million video views per month with a significant presence on all of our major vMVPDs and social platforms. So with this combination of assets, we now have a full suite of hyper local, national business and international news offerings across both linear and non-linear formats. The entrepreneurial management of Cheddar is a great fit with Altice USA and will now oversee our entire news business. Our strategy here is to provide quality content, grow distribution and as a result, enhance our advertising revenue growth. Cheddar also fits really well with our advanced advertising business, as we can plug it into our multi-platform one-stop shop for advertisers with national reach. We expect to close the Cheddar acquisition in the next 2 months following regulatory approval. And now, I'll hand it over to Charlie to review the financials and guidance in more detail.