From Architectural Gems to ‘Secret Conversations,’ Here Are 6 Arts Picks for the Week The Chicago Architecture Biennial runs through Feb. 28, 2026. (Tom Harris) After 37 years, I’m leaving WTTW (amicably, I’m glad to say), but my relationship with PBS started much earlier. In fall of 1969 I was in kindergarten. The teachers gathered all classes into the one room with a TV, and we watched “Sesame Street” early in its first season.