I've recently become a big Medium fan, and I was wondering what the best episodes to watch are, so I can downloiad them,

If you're after a couple of 'scary' episodes then watch "The Devil inside: Part One" and "The Devil Inside: Part Two"...

I like the episode "The Song Remains the Same"..

Personally I think all the episodes are good so it's hard to pick one..

I'd say watch from the beginning and watch them all!! :D