04/17/1995 at 01:00 AM EDT
TV SHOWS AND POLITICIANS HAVE A LOT in common. Good ones are hard to find, and both sometimes need grassroots campaigns to stay in business. Which brings us to ABC's teen-angst drama My So-Called Life and NBC's cop show Homicide: Life on the Street. Both were critical raves, but suffered in the ratings and face cancellation. With the networks announcing fall schedules in May, fans should speak now or forever hold their peace. In the past, shows like Cagney & Lacey and I'll Fly Away got a reprieve after letter-writing campaigns. Life and Homicide deserve similar support.