Fill out your brackets quick this coming Sunday and Monday. 

The NCAA has made some changes to the way it configures the Men's NCAA Basketball Tournament. Now there will be 68 teams instead of 64.

Tuesday, March 15th, and Wednesday, March 16th, will be the days for four teams to play to get into the 64-team bracket.

The first and second rounds start on Thursday, March 17th, and continue into Sunday evening.

Selection Sunday, which is the day the tournament brackets are announced, is this coming Sunday, airing on CBS.

All games will be aired on CBS, TNT, TBS, and truTV. Charles Barkley will be a studio analyst.