Back to School // `Sir' Sequel Brings Lessons to Chicago

TO SIR WITH LOVE II (STAR) (STAR) (STAR) 1/2 WBBM-Channel 2,8 to 10 p.m. Sunday.Sidney Poitier waited 29 years before reviving his title role of "ToSir With Love." Was it worth the wait? Certainly.

The 69-year-old Oscar winner retains his imposing drive anddignity in Sunday's gritty sequel to "Sir," the hit 1967 film about ayoung teacher from Guyana who inspired a class of unruly Londonteens.In "To Sir With Love II," an upbeat CBS movie airing at 8 p.m.on Channel 2, devoted educator Mark Thackeray leaves London to take ajob teaching history on Chicago's South Side. Former students from'67 (pop singer Lulu as Pegg and Judy Geeson as Pamela) giveThackeray a sentimental …