Last year there were an estimated more than 51,000 homeless in L.A. County. Troy Isaac is 38, and he's trying to change that.

I lost my ability to speak Korean with my parents. I thought I could fix the problem by learning Korean, but it wasn't that simple.

Troy Erik Isaac is a homeless advocate who travels all over Los Angeles by foot helping any person he meets—he almost never ignores a phone call. But maybe even more compelling is his long, sometimes troubled history.

Cheech Marin, half of stoner comedy duo Cheech & Chong, gives Off-Ramp host John Rabe an exclusive tour of his Chicano art collection.

Flintridge Preparatory School students find out why you should buy a 65-pound bike.

Will Ryan, leader of the Cactus County Cowboys, calls their brand of music "Cowboy Skiffle." They entertained Mickey Rooney, Margaret O'Brien, Rose Marie, and the rest of the crowd at the Southern California Motion Picture Council's annual holiday banquet, but Off-Ramp host John Rabe got a special preview as they were warming up. In this iteration, Ryan -- the voice of Tigger for 16 years -- is joined by Westy Westenhofer, John "Presto" Reynolds, "Chaparall Katie" Cavera, "Buckaroo Benny" Brydern, and "Cactus Chloe" Feoranzo.

Off-Ramp's Sam Blum joins Heroman aka David Fillmore on a superhero ride along. Heroman is LA's only known superhero, he also wears a yarmulke.

1/7/2012 UPDATE: The LA Zoo is celebrating Betty White's 90th birthday this month with a cake for the first 900 people through the gate and a special scavenger hunt. Betty won't be there; she's too busy! We taped this interview last summer. It's true, and when she's petting the tapir, she's thinking about the koala, and possibly the elephant. Betty White, America's sweetheart and author of the memoir "If You Ask Me (And of Course You Won't)," talks with KPCC's John Rabe about the LA Zoo (and its upcoming Beastly Ball fundraiser), acting in "Advise and Consent" under Otto Preminger, and about looking like a grandma.