NBC's greatest shows of all time

'This Is Us'

"This Is Us," a drama starring Milo Ventimiglia and Mandy Moore that moved back and forth in time, became the breakout show of the 2016-17 season. It has been renewed for two more seasons.

'The Cosby Show'

The most popular TV show of the 1980s with Bill Cosby as everyone's favorite TV dad, Dr. Cliff Huxtable (1984-92).

'The Golden Girls'

Four seniors (Bea Arthur, Estelle Getty, Rue McClanahan, Betty White) yuck it up in a Florida retirement community (1985-92).

'ER'

Fast-paced medical drama made a superstar out of George Clooney, who played Dr. Doug Ross (1994-2009).

'Hill Street Blues'

Ensemble drama that revolutionized the TV cop show (1981-87).

'Miami Vice'

Glitzy, MTV-influenced cop show starring Philip Michael Thomas and Don Johnson (1985-89).

'Seinfeld'

A comedy about "nothing" starring Jerry Seinfeld, Julia Louis-Dreyfus, Jason Alexander and Michael Richards (1989-98).

'Frasier'

"Cheers" spinoff moved Dr. Frasier Crane (Kelsey Grammer) from a Boston barstool to a Seattle radio studio (1993-2004).

'Friends'

The adventures of six twenty-something Manhattanites (Jennifer Aniston, Courteney Cox, Lisa Kudrow, Matthew Perry, Matt LeBlanc and David Schwimmer) (1994-2004).

'Rowan & Martin's Laugh-In'

Wacky, rapid-fire sketch show that introduced Goldie Hawn and the expression "sock it to me" to the world (1968-1973).

Comedy set in a Boston bar, starring Ted Danson as ball player-turned-bartender Sam Malone (1982-1993).