Most Popular Shows of 2018 Revealed

10. Bull

Michael Weatherly left NCIS to star in a new legal drama called Bull in 2016. By the looks of it, that move is paying off as the show climbs into network TV's list of heavy-hitters. According to a report by TV Guide, Bull had an average audience of 13.5 million viewers per episode this season.

9. America's Got Talent

Next up on the list is NBC's beloved national talent show America's Got Talent. The spectacles were a thing to behold this year, though some viewers began to get jaded as acts who performed well on other countries' shows came here just to compete. AGT scored an average of 14.3 million viewers.

8. The Good Doctor

Not far ahead was ABC's new medical drama The Good Doctor, with 14.5 million average viewers. The Good Doctor had a stellar first season which wrapped up in the spring, and hit the ground running in the fall as well. It stars Freddie Highmore, the young actor best known for playing Norman Bates in Bates Motel.

7. Manifest

Manifest put on an impressive display, making it onto this list despite only just premiering this fall. The show runs on NBC, and is often compared to the classic drama Lost for its winding conspiracies and supernatural mysteries. The show had an average audience of 14.6 million viewers this year.

6. Young Sheldon

The Big Bang Theory may be wrapping up soon, but Young Sheldon is just getting started. The series follows a much younger Sheldon Cooper, whom audiences seem to be in love with. Young Sheldon held 15.7 million peoples' attention on average this year.

5. This Is Us

Of course, NBC's drama sensation This Is Us had a huge audience. The series was the thing on everyone's mind this year as family drama and intrigue played out from two ends of the same time line. This Is Us had an average audience 16.6 million strong.

4. NCIS

Meanwhile, CBS' navy procedural NCIS had a banner year as well. The show saw some major shake-ups this year, with veteran cast member Pauley Perette (Abby Sciuto) stepping away, and other characters stepping into more prominent roles. The show had an average of 16.7 million viewers in 2018.

3. The Big Bang Theory

The next spot takes a huge leap, as The Big Bang Theory pulled in an audience of 18.3 million on average this year. The show finished its last season with Sheldon and Amy's wedding in the spring, and is now tying up the loose ends of its final season right now.

2. Sunday Night Football

NBC's Sunday Night Football broadcasts jumped to the second spot on the list with an average of 19.6 million viewers. The sport seemed to be in trouble in the last couple of years, as concussion controversies and on-the-field protests threatened its viewership. Still, the game seems to have rallied.

1. Roseanne

Finally, and perhaps ironically, the most-watched show of 2018 was Roseanne. The reboot had a whopping 20 million viewers on average when it returned in the spring for just nine episodes. ABC eagerly renewed the show when it displayed Nielsen ratings that network executives had not seen in years, yet the good times could not last long.

Roseanne was canceled after its star, Roseanne Barr, posted a racist tweet about former Obama administration adviser Valerie Jarrett. Barr has been known for circulating conspiracy theories online for years, but this one brought the whole series down. In an effort to salvage the success, the network greenlit a spin-off featuring all of the other characters, where Roseanne herself had died of a drug overdoes.

The Conners fell short of this list with an average viewership of 10.54 million so far this season. Still, the show has a dedicated following and could go far as fans continue to adapt to the new line-up.