For the week starting Thursday, Aug.
2. Times are E.D.T., subject to change.
TELEVISION Julius La Rosa Show (Sat. 8 p.m., NBC). Guests: Bert Lahr, Lassie.
Ed Sullivan Show (Sun. 8 p.m., CBS).
U.S. Air Force program.
Steve Allen Show (Sun. 8 p.m., NBC).
Guests: Judy Holliday, Louis Jourdan.
Afternoon Film Festival (Tues. 3 p.m., ABC). Alfred Hitchcock's The Lady Vanishes.
RADIO Conversation (Thurs. 8:30p.m., NBC).
The Essence of Greatness, discussed by Jacques Barzun, Rt. Hon. Anthony Nutting, Clifton Fadiman.
World Music Festivals (Sun. 2 :05 p.m., CBS). Sibelius Festival in Helsinki.
Biographies in Sound (Tues. 8:35 p.m., NBC). Frank Lloyd Wright....