More TV ViolenceIs, At Least,Controlled VarietyNEW YOIRK - (NEA) — Committees of concerned parents and teachers, as well as angry penal experts, have long sought to lessen violence on television. They still have a long way to go; there will be more football on television this season than ever before.played (a) in the fall and early winter, (b) on Sunday, except for a Thanksgiving Day aberation, and (c) at 1 p.m. or thereabouts. No more.Not only do pro football games compete for summer evening a 11 e n t ion with mosquitoes, but games areplus eight post season games.And at all hours. If you live in the East and your local team is playing that night on the West Coast then, because of the time difference, you may be torn at 1:30 in the morning be-i ti