TILT: (Tue) Radio Ads -- Time to Calculate?

I listen to a bit too much talk radio -- sports talk radio. I always get annoyed by how much time they spend on advertisements. First, when they switch to their score review segment (every 20 minutes), they have both the national and the local cases -- which takes time. Then, they have their ads. I try to get used to when I can tune out for say 5-8 minutes. Then, they add new in segment ads where they verbally read copy that's an add -- so and so sponsoring this segment. I am toying with the idea of recording a whole day and then publishing actual real talk times with no ads for each show to see which is the WORST about this. Wonder if FOX is worse than ESPN?