To summarize it: play the first episode and if you like it, buy the whole season. If you are not sure after trying the first episode, wait for a promo and you'll be able to grab it for less than 10$.

The guy who portrays Biff (as well as a lot of other Tell Tale characters) is Kid Beyond, who is also an amazing beat boxer.

Here is beatboxing:
http://www.youtube.com/watch?v=POFPeIYZa74

And here in an interview about Tell Tale:
http://www.telltalegames.com/community/blogs/id-798

I only played the sam & max games from telltale, and season 2 and 3 are two of my favourite games, but i didn't like the first episode of back to the future much, it's kind of dull overall i hope the series will get better, but right now i'm not interested.

well to be honest jack Orlando is a really though game.

Thanks, I'll be passing, that's so sad.