List of longest-running U.S. primetime television series
50 seasons or more

Number of seasons
Series
Genre/Subject
Network
First broadcast
Last broadcast
Number of episodes
64
Hallmark Hall of Fame
Anthology
NBC
Dec 24, 1951
Dec 17, 1978
354
64
Hallmark Hall of Fame
Anthology
CBS
Nov 14, 1979
April 30, 1981
354
64
Hallmark Hall of Fame
Anthology
PBS
Feb 9, 1981
May 6, 1981
354
64
Hallmark Hall of Fame
Anthology
CBS
Dec 1, 1981
Jan 29, 1989
354
64
Hallmark Hall of Fame
Anthology
ABC
April 30, 1989
April 23, 1995
354
64
Hallmark Hall of Fame
Anthology
CBS
Dec 10, 1995
April 24, 2011
354
64
Hallmark Hall of Fame
Anthology
ABC
Nov 27, 2011
April 20, 2014
354
64
Hallmark Hall of Fame
Anthology
Hallmark Channel
Nov 30, 2014
present
354
53
Walt Disney Presents
Anthology
ABC
Oct 27, 1954
June 11, 1961
1,224
53
Walt Disney Presents
Anthology
NBC
Sep 24, 1961
Aug 16, 1981
1,224
53
Walt Disney Presents
Anthology
CBS
Sep 26, 1981
May 3, 1983
1,224
53
Walt Disney Presents
Anthology
ABC
Feb 2, 1986
May 22, 1988
1,224
53
Walt Disney Presents
Anthology
NBC
Oct 9, 1988
Aug 26, 1990
1,224
53
Walt Disney Presents
Anthology
Disney Channel
Sep 23, 1990
Sep 21, 1997
1,224
53
Walt Disney Presents
Anthology
ABC
Sep 28, 1997
Dec 24, 2008
1,224
53
Walt Disney Presents
Anthology
Disney Junior
March 23, 2012
present
1,224
50
60 Minutes
News Magazine
CBS
September 24, 1968
present
2325+

Question: What are the two longest-running prime-time American television series and what were their genres?
Answer: The Walt Disney anthology television series is the second-longest-running prime-time program on American television, behind its anthology series, the Hallmark Hall of Fame.