Guys (SeanP, Bill and SeanB), I feel like you need to look at what you're trying to accomplish with Mostly Walking. Are you trying to do a semi-serious but still fun and entertaining analysis of old school adventure games, or are you instead trying to use the games as a means to take the cynical p*ss out of them and try and make yourselves look funny in the process? Seems to me like it's the latter, and that's a shame.
The Dig isn't perfect, but you completely ruined it for yourselves (and many of your viewers judging by the YouTube comments) by trying to make a joke out of every situation - you utterly ruined the immersion, and the immersion is an important part of the game.
If you're just aiming to screw around then perhaps stick to the 'comedy'/'whacky' adventure games such as the Monkey Island games, Sam and Max, Day of the Tentacle, etc.