Kevin Latek
Analyst · The Benchmark Company
Thank you, Pat. I'll begin as usual with retransmission. For the full year 2019, you saw in today's release that we posted $799 million of gross retransmission revenues on our combined historical basis. That figure was slightly ahead of our guide of about $795 million for the full year. Looking ahead, we currently anticipate gross retransmission revenue of $213 million to $215 million for the first quarter 2020. Retransmission revenues will be higher in the second, third and fourth quarters due to rate increases that are phasing into place during the first several weeks of this year. We are negotiating 2 major retransmission agreement at this time.
Upon the successful conclusion, we will be able to provide guidance for full year retransmission revenue and retransmission expense. I do want to emphasize, though, that our gross retransmission revenue will be higher in each of the last 3 quarters of 2020 when compared to the first quarter of this year.
At the beginning of this year, we had retransmission consent agreements expiring that comprise about 20% of our current paid MVPD sub base. The vast majority of our retrans contracts will be up for renewal and repricing over the next 10 to 11 months, covering about 56% of our current paid MVPD sub base.
In mid-2021, we will renew and reprice contracts covering the remaining 24% of our MVPD sub base. These percentages are updated from the figures we provided earlier because they incorporate the movement of MVPD subs among providers as well as sub losses and the terms of recent agreements reached with MVPDs. I also want to add that our total sub base in 2019 was essentially flat from the beginning -- from the end of 2018.
Turning to political revenue. We announced in our last call that we anticipate that 2020 will be strong enough to break the all-time high for political advertising revenue that we set in 2018, when we booked $235 million on a combined historical basis. Today, we are raising our full year political advertising revenue guide to a range of $250 million to $275 million. We feel very comfortable with this new full year guide.
The fourth quarter of 2019 was only the latest in the string of quarters in which we encountered a much stronger political ad environment than we had expected going into the period. In the last call, we pointed out numerous positive developments and trends that we thought would support our then aggressive guide for the fourth quarter. And then soon after our call ended, Mike Bloomberg entered the presidential race and Tom Steyer noticeably increased his spending in South Carolina, where we have a very large presence. They had a noticeable impact on our results. Mr. Bloomberg and Mr. Steyer, in fact, were our top 2 political advertisers in the fourth quarter, but they did not account for all of the over-delivery on our fourth quarter political guide. To the contrary, if we exclude the spending from both Mr. Bloomberg and Mr. Steyer, our political advertising revenue in the fourth quarter still exceeded our guidance, the high end of our guidance by more than 20%. This tells us that their 2 campaigns are adding incremental money to a market that is already very robust.
In 2019, we received about $13.5 million political advertising revenue from presidential campaigns, which is about 46% of the total. While a large figure for an off-year in the political cycle, remember that Gray has a strong presence in the 4 early presidential campaign states of Iowa and New Hampshire, Nevada and South Carolina. We also performed quite well last year in terms of the share of political buys that came into our markets. 62 of our 93 markets are audited by an outside accounting firm. The audit review at the legacy Raycom stations, which on the whole operate in larger markets than legacy Gray stations, increased their share of political spending in the market by slightly more than 1 percentage point in 2019 over 2018. The legacy Gray stations increased their political shares by 2 points in 2019 over 2018.
Given that our stations in both of these groups are comprised of lots of top-rated local stations facing very strong competition, it is always an achievement to maintain shares. The fact that we increased shares on both sides of the company is a remarkable achievement that we believe is due in part to the new scale of Gray Television. Our earnings release puts 2019's political numbers in context by looking back at 2017, the most recent non-presidential election year. We've also gone back and looked at political advertising revenue in 2015, the most recent year prior to a presidential election.
For this exercise, we created a same-station dataset consisting only of the stations owned by Gray prior to Raycom, United, KDLT and WVR -- WVIR acquisitions that all occurred in 2019. The same-station comparisons are striking. Fourth quarter 2019 political advertising revenue was 48% higher than the fourth quarter of 2015. Full year 2019 political advertising revenue was 37% higher than full year 2015 advertising revenue.
In short, the-just-completed pre-presidential year was significantly better than 2015 and 2017, and that all bodes well for 2020. Moreover, the political landscape looks very different now than it did in 2016. This time around, both parties seem fully engaged and fully committed to the presidential campaign this year.
Control of the Senate is very much in place. The Democrats need to flip just 3 or 4 seats to take control. The Senate is a political firewall by both parties if they lose the White House, which means we should see significant issue in super PAC spending in the most competitive Senate races. And Gray has the most top-rated local news stations of any broadcaster in the most competitive Senate races: Colorado, Arizona, Maine, Alabama, North Carolina, Kentucky and Georgia. In addition, some believe that Republicans have a real shot at flipping the House and thereby ending the Democrats' control of investigative impeachment powers against a reelected President Trump. Right or wrong, that perception could fuel even more political engagement in advertising.
In total, the Republicans need to flip 18 House seats to take back control. In terms of Gray's footprint, we have 16 markets with an open house race this year. We have 12 markets with a democratically held seat in a district that went for Trump in 2016. For the current year, we estimate a range of $35 million -- sorry, for the current quarter, we estimate a range of $35 million to $40 million in political advertising revenue.
By comparison, on a combined historical basis, we had just $9 million of political advertising revenue in the first quarter of 2018 and $26 million of political advertising revenue in the first quarter of 2016. In closing, it should now be clear that we are very excited about the prospects for political advertising revenue over the rest of this year.
I'll now turn the call over to Jim Ryan.