First, you should know that Telltale has released the Sam & Max Complete Pack, which crams the first two seasons of the episodic Sam & Max series along with the currently 'airing' third season, The Devil's Playhouse, all into one package. The second thing you should know -- please, pay attention -- is that the Complete Pack is currently on sale for the ludicrously low price of $49.99, one heckuva deal considering the usual $95 price tag. If you've been looking for an excuse to dip your toes into the delightfully mad world of Sam & Max, this is it. Just do it quickly, because the sale ends June 2 at midnight PT.
Mac users take note: only Seasons 2 and 3 are currently compatible with OS X. Telltale plans to port Season 1 "eventually," noting that its older code makes the porting process more difficult than the newer seasons. A Telltale purchase counts for both Windows and OS X versions, so Mac users will be able to download Season 1 free of charge once the port is finished.