Marc Maron’s refreshingly honest — not to mention popular — podcast features one-on-one interviews with some of the biggest names in entertainment. Tonight, the stand-up comedian hosts “WTF With Marc Maron” before a live audience as part of Riot: L.A.’s Alternative Comedy Festival. Sat. 8 p.m. $20. Downtown Independent Theater, 251 S. Main St., downtown. (312) 730-4000. riotla.com.