This is more of a question really. When I watch Scrubs on TV, I've noticed that some of the songs played over different bits, montages etc, are different from on the DVD.

E.g. On the episode where JD meets Alex from the MRI machine in season 1, on my DVDs they play "break down the walls" during the bit where Elliot and Cox are working together on a patient and on TV they play something different.

I was wondering if anyone knows why the hell this is?

Similarly, sometimes the episode names are different.

xxx