If you own the first season remaster on Steam, you can grab a 25% discount off the sequel if you buy before the 21st December through the bundle page.
There's no time to waste. Go enjoy the HD visuals, remastered audio, new musical tracks, and all the other improvements that Skunkape have lovingly blessed this wonderful game with.
Can't play the game right now, but need some Sam & Max goodness? Well, watch the first 23 minutes of Ice Station Santa, with commentary from those aforementioned delightful Skunkape folk.