I wish they would have run more serials on TV when I was grown up. In this area, the only ones they ever seemed to show were the 3 FLASH GORDONs and the 1 BUCK ROGERS. And I clearly remember a stretch where the local channel was running ...TRIP TO MARS, BUCK ROGERS and ...CONQUERS THE UNIVERSE, but not the '36 FLASH GORDON. I mean... WTF???
In the 80's, NJN (PBS in Trenton) ran all 4, at a rate of 1 chapter per week. I managed to tape all of them that way.
In the late 90's I managed to get both BATMAN (1943) and BATMAN AND ROBIN (1948) off of AMC (I think). They ran the complete serials, without any breaks at all, a day apart, Monday and Tuesday night, both at 1:30 in the morning! I caught the 1st one totally by accident, saw it was about to come on in a couple minutes and scrambled to slap a blank tape into the VCR. The next day, just on the odd chance, I checked to see what they had scheduled, and sure enough it was the sequel. I really love the '43 film, in some ways, as much or more than the '66 tv series.
I also got CAPTAIN AMERICA (1943) on videotape by mail-order. Fabulous action, and the most intensely nasty S.O.B. Lionel Atwill ever played in his career. Ity really captures the fight scenes Jack Kirby put on paper-- if NOTHING else. And there's a reason for that. It's not that they got it so wrong... it's that the entire thing was planned & written as a MR. SCARLET serial, but at the last minute, they changed their minds and made it something else. Martin Goodman, apparently, was not thrilled... (heh)