Ok, there are two episodes of this show that I remember but can't seem to find a description for them.
The first is when the band buys a van so that they can go to their gigs easier. The thing never runs though and they spend the whole episode trying to fix it before they realize it was just out of gas.
The other one involves them make a commercial or something like that. I remember Sly in some ridiculous green monster costume for it.
Do these sound like any episodes you know of or is it another show?