Hogan's Heroes, 1986 instead of 1966 debut: A drama set in WW II, where Hogan and his men must try to help others escape with the occasional sabotage (no foiling weapons that weren't in use in OTL in this one), and deal with the grim realities of fighting the war behind enemy lines. As the Cold War ends, the show's tone changes a bit and the men become a little looser and more willing to joke around, but not a whole lot, and the theme remains the same - fighting against a seemingly unstoppable machine, with the only hope the fact that someone besides the fat guard Schultz is clearly on their side. general Burkhalter seems to have divided loyalties, as does Klink, and viewers speculate till the last episode, in 1990, that one or both may be secret Allied agents, too.
(*Note - in the original, we do know Schultz is a Social Democrat, from one ep., but here, he would clearly side with the Allies, not just ignore stuff. Klink might still be a dupe, but a much deeper dupe, his lack of spine coming from his being like Hamlet, not sure which side to take and whether to take a stand. Gen. Burkhalter does allow a lot of people to come through Stalag 13 in our HH, and ignored a couple things that were borderline, and with his also allowing the dupe Klink to stay there, shows he *could* have been Nimrod, a British agent referred to in one episode where he is one of the only likely people it could be. Here, the mystery would run much deeper and be much clearer.*)
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"Full House" - starts 1957: Think "Leave It To Beaver" with girls, with part of the comedy D.J., the oldest girl, forced to be the mother figure, treating it in a more lighthearted way. Joey is the goofy next door neighbor and Danny's best friend, brother-in-law Jesse a young rock and roller just as the craze is starting, but while both appear in every episode to help after Danny's wife dies, neither lives with them. Insead, it's D.J. dealing with things as disciplinarian, but her struggles with balancing her responsibilities at home and trying to be a teen treated in a more lighthearted approach. Also, not as much misbehavior, D.J. would run a very tight ship. The focus would sort of be on her outwardly doing this, especially with Michelle, rather than just implied (as in "someone had to do something for her to be as good as she was") like is brought out in the Chronology. This way, Danny is more invisible, instead of outwardly ignoring some of Michelle's misbehavior. Some may still speculate he suffers from depression over losing Pam, though, just as some do now with OTL's FH.