This post will be updated as announcements come out for start times for 9/30 from the twelve day selection process that most TV networks adhere to. Please understand that games can be held until next Sunday if a broadcaster wants to wait on the results of the Week Four games. Most conferences have the possibility of having all or part of their games held for a six day hold of the start time.
Here's what I guessed based on the available openings (they'll prove to be incorrect) and here is the current schedule for the week as several FBS games do have their time & television/webcast assignments already accounted for.
All times Eastern.
12pm ABC: Northwestern at Wisconsin
12pm ESPN: Vanderbilt at Florida
12pm ESPN2: North Carolina at Georgia Tech
12pm FS1: Maryland at Minnesota
12pm ESPNU: Houston at Temple
12pm CBSSN: USF at East Carolina
12pm SECN: New Mexico St. at Arkansas
12pm ACC RSNs: Rice at Pittsburgh
12:20pm ACC Network: Syracuse at NC State
1pm ACC Network Extra: Central Michigan at Boston College
3:30pm CBS: Georgia at Tennessee
3:30pm ABC or ESPN2: Baylor at Kansas St.
3:30pm ABC or ESPN2: Florida St. at Wake Forest
3:30pm ESPNU: Navy at Tulsa
3:30pm BTN: Indiana at Penn St.
3:30pm ACC RSNs: Murray St. at Louisville
3:30pm ESPN3: Buffalo at Kent St.
4pm FOX: Iowa at Michigan St.
4pm ESPNEWS: Connecticut at SMU
4pm SECN: Eastern Michigan at Kentucky
4pm Pac-12: Arizona St. at Stanford
6pm ESPN: Mississippi St. at Auburn
6pm ESPN3: Akron at Bowling Green
7pm ESPN2: Memphis at UCF
7pm ESPNU: Troy at LSU
7pm ESPN3: Marshall at Cincinnati
7pm ESPN3: Ball St. at Western Michigan
7pm ESPN3: Coastal Carolina at UL-Monroe
7:30pm SECN: South Carolina at Texas A&M
7:30pm BTN: Ohio St. at Rutgers
8pm ABC: Clemson at Virginia Tech
8pm FOX: Oklahoma St. at Texas Tech
8pm Pac-12: Washington at Oregon St.
9pm ESPN: Ole Miss at Alabama
10:30pm ESPN2: Colorado at UCLA
10:30pm FS1: California at Oregon
10:30pm ESPNU: San Jose St. at UNLV