I tallied Sports Media Watch football viewership data for the past 4 years (2017-2020). Ranking each power 5 school by four criteria:
1) # viewers (home, away & neutral site games, including bowls)
2) average # viewers per game (home, away & neutral site games, including bowls)
3) # of viewers for home venue (what the conference sells as Media Rights)
4) average # viewers for home venue (what the conference sells as Media Rights)

In order of ACC media value:

Clemson (#9 P5 rank; 31% of viewership of ACC teams; 16% of ACC's T1 & T2 media rights viewership)
Miami (#18; 12%; 11%)
FSU (#19; 9%; 10%)
VT (#29; 7%; 7%)
Louisville (#30; 6%; 8%)
UNC (#39; 5%; 7%)
Pitt (#41; 5%; 5%)
GT (#42; 4%; 6%)
BC (#43; 4%; 6%)
Syracuse (#46; 4%; 4%)
UVA (#54; 4%; 3%)
Wake (#55; 4%; 4%)
NC State (#56; 4%; 4%)
Duke (#62; 3%; 2%)
ACC CCG (#4 amongst 5 P5; N/A; 8%)

The P5 schools ranked ahead of Clemson in terms of viewership are: Alabama, Ohio State, Michigan, Georgia, LSU, Auburn, Notre Dame and Oklahoma.

The P5 schools ranked below Duke in terms of viewership are: Rutgers, Kansas and Oregon State.

Unfortunately, Tobacco Road is where football viewership struggles.