I have a question about those "Closed Captioning is brought to you by BLAH BLAH BLAH" advertisements...WHY do shows that are like 10 years old, and have been shown probably hundreds of times have new closed captioning sponsors? I'm sure they don't re-do the closed captioning each time an episode is aired...the closed captioning was done once, years ago, and the same closed captioning is used each time it's aired...why do they still have companies funding the closed captioning?