I run three VHF(3-7-11) and one UHF(45) B-T channel modulators so I can use any set with rabbit ears around my place.
Four of the Funai-made Magnavox/Philco DTV boxes run 24/7, connected to a roof antenna of course..
Its just like old times with a little bit of snow and ghosts sometimes but yes, TV writing is not very clever anymore so its all old stuff for me too.
Channel 3 is a CBS (3-KYW or 21-WHP) in honor of those classic "Westinghouse Broadcasting" call letters. Before that, 3-WPTZ in PHL was Philco's station!
Channel 7 is a local NBC (8-WGAL) can't use 8 but there is no 7 locally.
Channel 11 is used for METV, a throw back to 11-WPIX in NYC, which was an independent that showed great cartoons and re-runs of Star Trek
Channel 45 is Grit, RTV or some channel that shows old movies, a tribute to WBFF-TV 45 in Baltimore, which often showed classic movies and was home to "Captain Chesapeake" who showed Popeye and 3 Stooges at 6-7am before we caught the bus.