I've been wanting to listen to the Gervais podcasts. Is there a particular season/episode that was the best, or a good place to start?
There's a lot to be listened to and as rezzeJ said, it's nice to see him evolve through the XFM shows and hearing Ricky and Steve slowly peel back the curtain on Karl's ridiculous mind. However, for a new listener, it might be a bit weird because it's mostly Ricky and Steve at the start talking about what horrible radio hosts they are, so I usually suggest listening to a couple of the podcasts from the first round they recorded to see if you like it or not. They get very addictive.
I recommend going back to the original XFM radio shows before Karl Pilkington was even a thing and was just their producer if possible. Some of it is absolutely classic. The features that they'd make KP come up with are hilarious and as he gets more and more confident it just keeps getting better. He's a lot more natural back then as well where as now it seems he plays it up a bit for the camera/mic.