All games will be played across CBS and TBS, with the best in the business bringing you the action from Los Angeles, Boston, Dallas and Detroit. The top eight teams in the nation -- entering March Madness -- are all in the thick of it entering the second week for just the fifth time since the NCAA Tournament expanded to 64 teams in 1985. After the Final Four, you will notice veteran Ian Eagle stepping in as the lead play-by-play announcer.