With Tommy Chong sitting in 'The Green Room with Paul Provenza' (Thu., 11PM ET on Showtime), it was inevitable that the topic of drugs came out. The guys talked about their belief that marijuana is harmless, and the details of Chong getting busted for bongs, as opposed to actual drugs.

Joe Rogan started talking about the 'War on Drugs,' which he sees as a joke at this point, and representative of the colossal failure of government in general.

"The only way you're going to fix it is by influencing young people," he said. "Young people who are not going to be completely compromised by the system by the time they hear your message."

Legendary comedy team Cheech Marin and Tommy Chong appeared on 'Lopez Tonight' and submitted to a DNA test, and touched on the benefits of marijuana use.

"I think we'll find out you guys are 32% THC," said George Lopez, referring to the active ingredient in marijuana. As part of a recurring bit, Lopez routinely tests the DNA of his guests to determine their heritage.

Watch the video after the jump.

First there was the Lincoln-Douglas debate. Then came the Nixon-Kennedy debate. Now Fox News' Geraldo Rivera continues that great American tradition of the public debate with the Cheech and Chong-Coulter debate.

It might sound like the world's most lopsided episode of Celebrity Deathmatch, but the world's most famous pot comedy duo squared off against the famed conservative pundit on Rivera's "Geraldo at Large" show recently to discuss the opening of the country's first cannibus club in Portland, Oregon and the legalization of marijuana. Despite the craziness of the casting, they actually have a very frank, civilized and enlightening discussion on the subject.