It may be more cost effective now but 7-8 years ago, the price was about $75 for a special order.  

The company I worked for would occasionaly need copies of certain broadcasts.  One of my co-worker's jobs was to obtain them.   He would either contact the network or solicit a local company who offered that as one of their services.  

Like I said, it's been about 7 or 8 years but I think they were listed in the phone book.  I forgot what you would need to look under.  Probably something like television, broadcast, etc.    

I'm sure sportscast requests are much, much more common.  You probably won't have to pay a lot.