Here's the map for CBS which has regional coverage today and not the doubleheader.
The following areas will receive the Buffalo-St. Louis game and may be affected by a runover.
Parts of New Hampshire
Vermont
Parts of Western MA
Most of New York except the New York City metro area
Upper Western PA
Southwestern IL
Eastern Missouri including St. Louis
Most of Tennessee
The following areas will get San Diego-Oakland and may be affected by an overrun:
New York Metro area including NYC, NJ, parts of CT
Eastern PA (except Philadelphia, but this might include you, puddin)
Wisconsin including Milwaukee
Minnesota including Minneapolis-St. Paul
Eastern North Dakota
Southwestern Tennessee
Parts of Eastern Arkansas
Southern Louisiana including New Orleans
Upper Georgia including Atlanta (peach!)
Central Florida including Tampa
Parts of North Carolina including Charlotte