By Daniel Chavkin The college football analyst has missed the past two weeks with an illness. Lee Corso is officially returning to College Gameday this week. After Corso missed two weeks with an illness, ESPN posted a picture of him preparing to return to the program on Saturday. The show will return to Knoxville for the second time this year, after a show ahead of Tennessee vs. Florida in September. Corso has been a staple on ESPN’s college football pregame show, so it is noticeable when he isn’t involved. Last week, Kirk Herbstreit assured the audience that Corso would return soon. “He’s fee…