What's the story behind 'Born Innocent'? Was that the main cause of the so-called '8 PM Family Hour' being put in place in '75?
I've read that, until CBS said otherwise, Arness, and other 'Gunsmoke' cast members, had assumed they would come back for at least a 21st season, and that Arness felt he could have done at least a couple of years after '75. By that point, the show had lost some viewers to 'The Rookies' on ABC, and, without Lucy or 'The New Dick Van Bad Word Show' ;D leading out in '74, 'Gunsmoke' didn't really fit in with the network's lineup of 'MTM and Norman Lear' spinoffs.
I always assumed that CBS just felt it would be easier toket 'Gunsmoke' go after an even 20 years, and with its ratings still (barely) in the Top 30, rather than moving it to a later timeslot and/or another night.
I've also assumed that CBS dropped 'Mannix' in '75, due to that 'Family Hour' rule, and no room for it with other new dramas on the schedule that year.
As for 'The Men From Shiloh' in '71, I guess NBC only had one slot for a 90-minute program, and really wanted it for the 'NBC Mystery Movie', which aired only on Tuesdays, in 'Virginian/Shiloh's old spot; NBC kept 'The Bold Ones' on Sundays at 10 in '71, rather than cutting 'Shiloh' to 60 minutes and pairing it with 'Bonanza.'
Ironically, they ended up moving the 'NBC Mystery Movie' to Sundays in '72(or at least the 'Columbo/McCloud/Third show that nobody watched' version), while 'Bonanza' and the 'Bold Ones' went to Tuesdays to die, and Wednesdays got 'Banacek' and other short-lived shows in the 'other' Mystery Movie slot.
The one 'old timey' sitcom scheduling decision that I don't get was 'My Three Sons'..how did that show last until '72, especially in such a sitcom-unfriendly time slot(Mondays at 10:00) in that last season?