Inspector Gadget was syndicated by Field Communications prior to the company being broke up and after that DIC. It never aired on Channel 48 because it was not in syndication until after Channel 48 went dark. But had Channel 48 stayed on the air they would ahve had Inspector Gadget.
Right, forgot about that. Actually, WKBS did air the pilot a couple months before going dark, complete with an ad in TV Guide touting Don Adams as the voice of Gadget.
Other shows Channel 48 owned but never put on the air with intentions of beginning to run them in teh fall of 1983 included Alice and One Day at A Time. They also had the rights to Fantasy Island and Thicke Of The Night.
...and all three off-net shows did end up on WPHL.
They were also set to pick up Bewitched which had gone from a cash syndicated show from Screen Gems and now barter from DFS.
...which also moved to 17 after a long run on WTAF-29.
Channel 17 would have had Love Boat and Little House had 48 remained on the air and Channel 17 remained commercial. One thing that almost happened was that Providence Journal planned to buy Channel 48, combine assets moving strong shows like Jeffersons and Threes Company and Barney Miller along with movies there. Channel 17 would have been sold to a religious broadcaster and become Christian full or close to full time.
I have read about that scenario. Makes for an interesting 'what if?'.