Keith Olbermann is back at ESPN. He began voicing essays for SportsCenter and guest-hosting a few days of PTI, but ESPN announced that Olbermann’s role at the network will expand once again, with the once-celebrated anchor hosting approximately 20 editions of the 11 p.m. SportsCenter over the course of the year, while also working in studio and in the booth on ESPN’s Major League Baseball coverage and appearing on network studio shows including PTI and Outside the Lines.