POWWW! POWWW! POWWW! (obscenity) POWWW! (Lord's name in vain) POWWW! POWWW! WHY WON'T THIS THING WORK (more obscenities)...I know quite a few adults who would've made this game more entertaining on the air.
WGN's New York City sister station, WPIX Channel 11, had a famous variant of this Tv POWWW gimmick during this same period; their version was called Tv PIXxx. Unlike here, the various games were presided over by off-screen staff announcers Bill Biery and Ralph Lowenstein, with alternations among still slides, video CGI's, and the primitive computer games in place then.
Ralph Penza was mostly a fixture on New York City television. At the time of this aircheck, he'd left WCBS Channel 2 (where he'd been since the mid-'60's) for then-sister station WCAU the year before. He'd return to New York in 1980 for a long run at WNBC Channel 4 (of which WCAU is now a sister station) that lasted on and off to not long before his death in 2007. On YouTube is a brief clip of a Sunday newscast anchored by Penza on WCBS in early to mid-1976, just prior to his joining WCAU.
It was around this time that WCAU replaced their prior color cameras (apparently RCA TK-42) with the same Thomson TTV-1518's as in use at WBBM.
Funny they had Orlando wearing that Bulls jersey considering that Chicago had switched to the current design the previous season. Perhaps this was a rerun of a commercial earlier in Woolridge's career.
At 1:12 in this video, you see a technician slide away the chroma key wall. Compare that to WCAU, the CBS station in Philadelphia in 1977, they had it on a fly system. http://www.fuzzymemories.tv/index.php?c=4771 at 0:45.