In the second half of the season premiere for 'It's Always Sunny In Philadelphia' this past week, "The Gang Solves The Gas Crisis". And to do so, Mac had to splain to Charlie and Dennis about the dynamics of their partnership - Mac was the brains, Dennis was the looks, and Charlie was the wild card. And he provided three succesful examples of this:
"The A-Team did it... Scooby Doo did it.... the Ghost Busters did it."
Since Mac ended up dressed as an Arab terrorist by the end of the episode, we'll de-Zonk that list from right to left.
"Ghostbusters" is a movie in Toobworld as well as the Real World. This is what Mac was referring to. The TV series was animation, therefore it's relegated to the Tooniverse and it's possible that characters in Toobworld could watch it, even if someday a cartoon character from the show found himself in the live action world (like Superman in the Amex blipverts).
By a long shot, maybe Mac was referring to the old kids' show which starred Forrest Tucker and Larry Storch. If so, he probably knew of their agency and applied the dynamic to their team as well - with Jake Kong as the brains, Eddie Spencer as the looks (such as they are) and Tracy as the Wild Card.
Scooby-Doo falls into the same category. Mac could have either been referring to the movie version or the original animated series.
Finally, the one that could really be considered a Zonk - 'The A-Team'.
There's not a problem with this one, actually. The A-Team was well-known for their heroics in helping the little guy all across the country. Wherever they went, they got publicity - which could be a little awkward because they were still wanted for a war-time crime they didn't commit. And since the show has gone off the air, they've probably been finally able to clear their names in public and continue to help out others legitimately.
So, it's NOT always Zonky in Philadelphia - at least this time......