I'll share some Spectrum memories of mine here, and make this thread TV-related in the process.
I attended the 1975-76 NBA All-Star game in February(?) 1976 at the Brick Sardine Can (it was a school night, so I left at halftime). CBS televised it, but walking past the mezzanine press box, I noticed a *film* camera (that's how long ago the Bicentennial year was, folks

) with a gigantic Westinghouse-font
3 on the side of one of the reel holders, capturing KYW's own footage (how much of it made the 11:00 "Eyewitness News" that night, I know not).
I have a few hockey memories too. One night during the 1974-75 season, I attended a Flyers game (against the California Golden Seals, to my memory). On our way to our obstructed view seats (we sat on the aisle steps and weren't chased

) we passed, on one corner of the Spectrum's middle level balcony, a TV camera perch. The unmanned, though turned on, camera had the logo of the Hughes Sports Network to which Pete Rozelle threatened to take the experiment called MNF back in 1970 if none of the Big 3 would make room on their schedule(s) for it. But back to the night in question. A televised Flyers home game was a rare event in the days when they were winning Stanley Cups, so I assumed (then as now) that that camera was part of the equipment being used to beam the game back to the Bay Area.
ixnay