The diagnosis is not good for 3 Lbs . After just three (yes, count 'em, three!) airing, CBS has yanked medical drama 3 Lbs. off the schedule, effective immediately. The drama, which starred Stanley Tucci, Mark Feuerstein (his series kiss of death continues!), and Indira Varma, was unceremoniously canned by CBS, which rushed the midseason medical drama onto the air. 3 Lbs replaced the crime drama Smith (which CBS also cancelled after three airings) on Tuesdays at 10 pm. Like Smith, 3 Lbs. didn't deliver the audience CBS was craving, averaging a rather unhealthy 8 million viewers. Additionally, the series' ratings were 16% below Smith . Call it a case of schadenfreude , but I can't help but smile when a cancelled cult audience series' replacement show winds up doing worse than the series it replaced. Ha-bloody-ha. In other scheduling news, ABC will air five episodes of newsmagazine Primetime on Wednesdays at 10 pm, subbing in for freshman drama The Nine , which i