According to Wikipedia, it was Season 6 Episode #624. http://en.wikipedia.org/wiki/MADtv_(season_6)
Season 3, Episode 10 : Safeguard
The show Ghost Adventures sometimes stop because that means that a season has ended. So after a while they will make a new episode and a new season.
Season 4, Episode 4 | Don't Make Me Over
Yes, after the season four finale Sam stops drinking demon blood, but he does drink it twice in season five, Season 5 Episode 14 (My Bloody Valentine), and Season 5 episode 22 (Swan Song).
It was done in their last episode of Season 1. It was called "Journey to Regionals''. They practiced it in the very 1st ep. Pilot
It wasn't The Bob Newhart Show. It was a guest appearance on MAD TV in 2001 (Season 6).
The episode is titled "Don't Make Me Over" and is episode 4 of the 4th season. The episode features the Journey song "Don't Stop Believing."
Season 3, Episode 10 : Safeguard
season 4, episode 4-Sins of the Son
The show Ghost Adventures sometimes stop because that means that a season has ended. So after a while they will make a new episode and a new season.
Season 4, Episode 4 | Don't Make Me Over
Because of money issues.
Martin Sexton - Can't stop thinking about you
Yes, after the season four finale Sam stops drinking demon blood, but he does drink it twice in season five, Season 5 Episode 14 (My Bloody Valentine), and Season 5 episode 22 (Swan Song).
It was done in their last episode of Season 1. It was called "Journey to Regionals''. They practiced it in the very 1st ep. Pilot
Don't stop believing
This season that they are giving will be the last aka the final episode.