Greg Sewart was always one of my favorite reviewers when he was at EGM, and now he is one of my favorite podcasters.
For a while now he has been putting up a the series that showcases the games of Sega's Mega Drive.
His goal is to chronologically play and review every game released on Sega's greatest system, as well as outline some of the history surrounding the development of the games, the hardware, and the general goings-on of the video game industry back in the nineties.
I've enjoyed them, they are great to watch while you are writing or gaming and have prompted me to buy some older games that slipped by me at the time. You can check it out here.