Why is there a 30 minute gap between Golf Channel and network TV coverage on weekends?

Typically for a non-major golf tournament, weekend coverage is shown on the Golf Channel from 1-2:30pm before CBS/NBC begins coverage from 3pm until the end of the tournament. Why is there a 30 minute gap?Why is there a 30 minute gap between Golf Channel and network TV coverage on weekends?I think its a rip off for the network coverage because everybody will just stop watching after the Golf Channel. What am I going to do in that half hour? Watch Bowling?Why is there a 30 minute gap between Golf Channel and network TV coverage on weekends?Its likely a payment dispute. Either Golf channel said it would only

pay the PGA for 1-2:30p coverage or CBS said they'll only pay from

3p-End coverage.