By Alan Carter
October 09, 1989 12:00 PM

>Should homeless people who are emotionally disturbed be forced into mental institutions? That’s one question raised by Asylum, a gritty and insightful documentary, (PBS, Tues., Oct. 3, 10 P.M. ET). Then lighten up with Elayne Boosler: Top Tomata, the brassy comedienne’s third Showtime special. Live from Omaha-ha-ha. (Sat., Oct. 7, 10 P.M. ET)