I loved their spin off Rifftrax.com, a bit tricky to get working, but worth it to hear the same guys trashing blockbuster movies instead of B movies.
E.g., two of my favorites: "Shake Hands with Danger" and "More Dangerous than Dynamite".
And the ones dubbed by Bridget and Mary Jo are great! Before them, the only narrator group I really liked was Mike+Kevin+Bill.
“Save the bones!! The fat kid can fend for his or her self!”