Wednesday, July 20
SIBERIA: A DAY IN IRKUTSK (NBC, 9-10 p.m.).*NBC News focuses on the sprawling Siberian city, 2,600 miles from Moscow, a once frontier trade center which now boasts close to 500,000 inhabitants and a building boom. Concentrating on the people who have helped build the city, NBC interviews a woman surgeon and a Trans-Siberian Railroad engineer.
Friday, July 22
SUMMER FUN (ABC, 8-8:30 p.m.). Seven different comedy shows fill in until fall, and the first stars Cliff Arquette as a contraption-inventing druggist in "McNab's Lab."
WAYNE AND SHUSTER TAKE AN AFFECTIONATE LOOK AT THE...