March Madness is in full swing and even if you're not a college hoops fan, that should extend to the rest of the TV schedule this week. After a surprisingly exciting season finale for The Walking Dead AMC is finally ready to bring back Mad Men. Also returning are favorites like Fringe and Mythbusters, although they're balanced out by Archer's third season coming to an end. HBO's Luck also airs its final episode this week and makes the most notorious exit of them all, alongside season finales from The River, Southland and Key & Peele. Look below for the highlights this week, followed after the break by our weekly listing of what to look out for in TV, Blu-ray and videogames. Bat