ON AND OFF THE AIR:
* If you had a chance to teach Bigfoot to talk, what words would be best to begin? That's the question kids are being asked to answer in a cute contest launched today (Monday) by the syndicators of the series "Harry and the Hendersons." which airs here at 9:30 a.m. Sundays on WNUV-Channel 54.
Have you seen it? It's a half-hour adaptation by MCA TV of the 1987 movie, boasting the same remarkably believable makeup job for the title character, a deep woods sasquatch who has moved in with a typical American family.