UPDATE Monday AM:
These are the four games CBS will tentatively focus on carrying as much in their entirety as possible for the L.A. market on Thursday:

9:25 p.m.: Portland State vs. Kansas
11:30 a.m.: Kentucky vs. Marquette
4:10 p.m.: USC vs. Kansas State
6:50 p.m.: UCLA vs. Mississippi Valley State

Note to Cal State Fullerton fans, whose game against Wisconsin tips off about 15 minutes before UCLA's game against MVS: A CBS spokesperson said the network is working on an alternative plan for the L.A. market to offer that game. Most likely it will be shown on the CBS College Sports Network (formerly CSTV), which isn't available on all cable systems but is on most dish system packages and will be easy enough to access in restaurant and bars.
This is one reason why the online service or DirecTV's package is the only way to guarantee viewing it. Same with those interested in watching Notre Dame, or Pac-10 schools such as Stanford, Washington State and Arizona play.

According to the CBS schedule released late Sunday, this is what you have access to via online (CBSSports.com) or with DirecTV's "Mega March Madness":

Thursday:
9:20 a.m.: Xavier vs. Gonzaga in Washington D.C., (Craig Bolerjack and Bob Wenzel)
9:25 a.m.: Kansas vs. Portland State in Omaha (Kevin Harlan and Dan Bonner)
9:30 a.m.: Michigan State vs. Temple in Denver (Gus Johnson and Len Elmore)
11:30 a.m.: Marquette vs. Kentucky in Anaheim (Dick Enberg, Carter Blackburn and Jay Bilas)

Approx. Noon: Purdue vs. Baylor in Washington D.C. (Bolerjack/Wenzel)
Approx. Noon: UNLV vs. Kent State in Omaha (Harlan/Bonner)
Approx. 12:10 p.m.: Pittsburgh vs. Oral Roberts (Johnson/Elmore)
Approx. 2 p.m.: Stanford vs. Cornell in Anaheim (Enberg/Blackburn/Bilas)

4:10 p.m.: Duke vs. Belmont in Washington D.C. (Bolerjack/Wenzel)
4:10 p.m.: USC vs. Kansas St. in Omaha (Harlan/Bonner)
4:20 p.m.: Washington St. vs. Winthrop in Denver (Johnson/Elmore)
4:25 p.m.: BYU vs. Texas A&M in Anaheim (Enberg/Blackburn/Bilas)

Approx. 6:35 p.m.: Arizona vs. West Virginia in Washington D.C. (Bolerjack/Wenzel)
Approx. 6:35 p.m.: Cal State Fullerton vs. Wisconsin in Omaha (Harlan/Bonner)
Approx. 6:45 p.m.: Notre Dame vs. George Mason in Denver (Johnson/Elmore)
Approx. 6:50 p.m.: UCLA vs. Mississippi Valley in Anaheim (Enberg/Blackburn/Bilas)*
*(game will be heard on 1150-AM, since Lakers game is on 570-AM)

Friday:
9:15 a.m.: Tennessee vs. American in Birmingham (Verne Lundquist and Bill Raftery)
9:25 a.m.: Gonzaga vs. Davidson in Raleigh, N.C. (Jim Nantz and Billy Packer)
9:30 a.m.: Drake vs. Western Kentucky in Tampa, Fla. (Tim Brando and Mike Gminski)
9:30 a.m.: Miami vs. St. Mary's in Little Rock, Ark. (Ian Eagle and Jim Spanarkel)

Approx. 11:45 a.m.: Butler vs. South Alabama in Birmingham (Lundquist/Raftery)
Approx. 11:55 a.m.: Georgetown vs. UMBC in Raleigh, N.C. (Nantz/Packer)
Approx. Noon: Connecticut vs. San Diego in Tampa, Fla. (Brando/Gminski)
Approx. Noon: Texas vs. Austin Peay in Little Rock, Ark. (Eagle/Spanarkel)

4:10 p.m.: Oklahoma vs. St. Joseph's in Birmingham (Lundquist/Raftery)
4:10 p.m.: North Carolina vs. Coppin State or Mt. St. Mary's in Raleigh, N.C. (Nantz/Packer)
4:20 p.m.: Vanderbilt vs. Siena in Tampa, Fla. (Brando/Gminski)
4:25 p.m.: Mississippi St. vs. Oregon in Little Rock, Ark. (Eagle/Spanarkel)

Approx. 6:40 p.m.: Louisville vs. Boise State in Birmingham (Lundquist/Raftery)
Approx. 6:40 p.m.: Indiana vs. Arkansas in Raleigh, N.C. (Nantz/Packer)
Approx. 6:50 p.m.: Clemson vs. Villanova in Tampa, Fla. (Brando/Gminski)
Approx. 6:55 p.m.: Memphis vs. Texas-Arlington in Little Rock, Ark. (Eagle/Spanarkel)

Saturday:
11:10 a.m.: West Virginia/Arizona winner vs. Duke/Belmont winner in Washington, D.C.
1:20 p.m.: USC/Kansas St. winner vs. Wisconsin/Cal State Fullerton winner in Omaha
Approx. 1:40 p.m.: Xavier/Georgia winner vs. Purdue/Baylor winner in Washington D.C.
3:40 p.m.: Washington St./Winthrop winner vs. Notre Dame/George Mason winner in Denver
3:45 p.m.: Stanford/Cornell winner vs. Marquette/Kentucky winner in Anaheim
Approx. 3:50 p.m.: Kansas/Portland State winner vs. UNLV/Kent State winner in Omaha
Approx. 6:10 p.m.: Pittsburgh/Oral Roberts winner vs. Michigan State/Temple winner in Denver
Approx. 6:15 p.m.: UCLA/Mississippi Valley State winner vs. BYU/Texas A&M winner in Anaheim

Sunday:
9:10 a.m.: Vanderbilt/Siena vs. Clemson/Villanova winner Clemson/Villanova winner in Tampa, Fla.
11:15 a.m.: Miami/St. Mary's winner vs. Texas/Austin Peay winner in Little Rock, Ark.
11:30 a.m.: Tennessee/American winner vs. Butler/South Alabama winner in Birmingham, Ala.
11:40 a.m.: Gonzaga/Davidson winner vs. Georgetown/UMBC winner in Raleigh, N.C.
Approx. 11:40 a.m.: Drake/Western Kentucky winner vs. Connecticut/San Diego winner in Tampa, Fla.
Approx. 11:45 a.m.: Memphis/Texas-Arlington winner vs. Mississippi/Oregon winner in Little Rock, Ark.
Approx. Noon: Oklahoma/St. Joseph's winner vs. Louisville/Boise State winner in Birmingham, Ala.
Approx. 12:10 p.m.: North Carolina/play-in winner vs. Indiana/Arkansas winner in Raleigh, N.C.