2022

Yearly Appearances: Arizona (7), Arizona St (5), Cal (7), Colorado (6), Oregon (2), Oregon St (6), Stanford (4), UCLA (4), USC (3), Utah (4), Washington (4), Washington St (7)

Most Appearances from 2022-Present

1. Arizona (7)
2. Cal (7)
3. Washington St (7)
4. Colorado (6)
5. Oregon St (6)
6. Arizona St (5)
7. Stanford (4)
8. UCLA (4)
9. Utah (4)
10. Washington (4)
11. USC (3)
12. Oregon (2)

2021

Yearly Appearances: Arizona (7), Arizona St (2), Cal (7), Colorado (8), Oregon (2), Oregon St (7), Stanford (3), UCLA (3), USC (2), Utah (4), Washington (5), Washington St (6)

Most Appearances from 2021-Present

1. Arizona 14
2. Cal 14
3. Colorado 14
4. Oregon St 13
5. Washington St 13
6. Washington 9
7. Utah 8
8. Arizona St 7
9. Stanford 7
10. UCLA 7
11. USC 5
12. Oregon 4

2020

Yearly Appearances: Colorado (1)

Most Appearances from 2020-Present

1. Colorado 15
2. Arizona 14
3. Cal 14
4. Oregon St 13
5. Washington St 13
6. Washington 9
7. Utah 8
8. Arizona St 7
9. Stanford 7
10. UCLA 7
11. USC 5
12. Oregon 4

2019

Yearly Appearances: Arizona (5), Arizona St (6), Cal (5), Colorado (5), Oregon (3), Oregon St (8), Stanford (5), UCLA (4), USC (1), Utah (4), Washington (2), Washington St (6)

Most Appearances from 2019-Present

1. Oregon St 21
2. Colorado 20
3. Arizona 19
4. Cal 19
5. Washington St 19
6. Arizona St 13
7. Stanford 12
8. Utah 12
9. UCLA 11
10. Washington 11
11. Oregon 7
12. USC 6

2018

Yearly Appearances: Arizona (2), Arizona St (5), Cal (5), Colorado (5), Oregon (5), Oregon St (8), Stanford (6), UCLA (3), USC (2), Utah (6), Washington (3), Washington St (5)

Most Appearances from 2018-Present:

1. Oregon St 29
2. Colorado 25
3. Cal 24
4. Washington St 24
5. Arizona 21
6. Arizona St 18
7. Stanford 18
8. Utah 18
9. UCLA 14
10. Washington 14
11. Oregon 12
12. USC 8 

2017

Yearly Appearances: Arizona (7), Arizona St (8), Cal (4), Colorado (7), Oregon (5), Oregon St (7), Stanford (1), UCLA (4), USC (2), Utah (3), Washington (3), Washington St (4)

Most Appearances from 2017-Present:

1. Oregon St 36
2. Colorado 32
3. Arizona 28
4. Cal 28
5. Washington St 28
6. Arizona St 26
7. Utah 21
8. Stanford 19
9. UCLA 18
10. Oregon 17
11. Washington 17
12. USC 10

2016

Yearly Appearances: Arizona (5), Arizona St (4), Cal (3), Colorado (6), Oregon (7), Oregon St (8), Stanford (4), UCLA (2), USC (2), Utah (4), Washington (5), Washington St (5)

Most Appearances from 2016-Present:

1. Oregon St 44
2. Colorado 38
3. Arizona 33
4. Washington St 33
5. Cal 31
6. Arizona St 30
7. Utah 25
8. Oregon 24
9. Stanford 23
10. Washington 22
11. UCLA 20
12. USC 12

2015

Yearly Appearances: Arizona (4), Arizona St (4), Cal (5), Colorado (7), Oregon (3), Oregon St (8), Stanford (2), UCLA (2), USC (2), Utah (3), Washington (5), Washington St (6)

Most Appearances from 2015-Present:

1. Oregon St 52
2. Colorado 45
3. Washington St 39
4. Arizona 37
5. Cal 36
6. Arizona St 34
7. Utah 28
8. Oregon 27
9. Washington 27
10. Stanford 25
11. UCLA 22
12. USC 14

2014

Yearly Appearances: Arizona (4), Arizona St (2), Cal (6), Colorado (9), Oregon (3), Oregon St (5), Stanford (3), UCLA (2), USC (2), Utah (4), Washington (5), Washington St (7)

Most Appearances from 2014-Present:

1. Oregon St 57
2. Colorado 54
3. Washington St 46
4. Cal 42
5. Arizona 41
6. Arizona St 36
7. Utah 32
8. Washington 32
9. Oregon 30
10. Stanford 28
11. UCLA 24
12. USC 16

...At this point, it's a bit of a pain to get the exact numbers and it's already become clear that Utah absolutely won't have the most appearances on the PAC Network. I may come back and add the rest when I'm not on mobile, but the gap between Utah and Oregon St (also Colorado) is massive enough that there's no way adding 2011, 2012, 2013 would put Utah with the most.