Most TV revealing mistakes of 1974

1Planet of the Apes picturePlanet of the Apes (1974)5
2Kolchak: The Night Stalker pictureKolchak: The Night Stalker (1974)4
3Little House on the Prairie pictureLittle House on the Prairie (1974)3
4Happy Days pictureHappy Days (1974)1
5The Six Million Dollar Man pictureThe Six Million Dollar Man (1974)1
6It Ain't Half Hot Mum pictureIt Ain't Half Hot Mum (1974)1
7Barney Miller pictureBarney Miller (1974)1