Thursday, August 11
THE AVENGERS (ABC, 10-11 p.m.).* "Too Many Christmas Trees" has John Steed having nightmares after a Christmas Eve party in the house of an eccentric publisher obsessed by Charles Dickens.
Friday, August 12
NATIONAL FOOTBALL LEAGUE (CBS, 9:30 p.m. to conclusion). The Green Bay Packers, defending N.F.L. champions, meet the Chicago Bears at Milwaukee's County Stadium in the first of four preseason games on successive Friday nights.
Saturday, August 13
THUNDERBIRD GOLF TOURNAMENT (ABC, 4-5 p.m.). Third round of the $100,000 Thunderbird Golf Tournament live from the Upper Montclair Country Club,...