Looks like Houston's METRO posts video from all of its public meetings online; there's even a link from their front page!
Take a moment to watch the first 5-10 minutes of the 7/28/11 board meeting (the first public commenter & the board's response to him). Very similar topics as the TriMet board, but note how the board actually responds to the public! My favorite line is: "So you won't give me the list of the members of your organization, so I can meet with them and hear all of their good comments?" That's pure Texas, baby! haha....
Also, note how the public comment forum is up-front.
The guy with the blue shirt / red tie is their GM (who was just busted for looking at porn using the company internet access).