Oh, right on... it's those older TV shows that are a problem. That's why we got the Super Mario All Stars version of the Super Show, and at times inappropriate music was redubbed over carefully thought out montages.
And it really bugs me, since most of said music is owned by either record companies, or private owners and corporations that buy them at auction from said record companies. Let's say that they used a certain song on The Muppet Show, let's say "Viva Las Vegas." Disney could approach them about it, but they'd get a solid no, or some frustraiting haggling session. But then you'd see the same music company that owned the song license it out for a commercial for Viagra, adult diapers, laxatives, or denture adhesive (something embarrassing that has no connection to the song, but it's cheaper and easier than writing an original jingle). Even if it disresepcts the original musicians or their families (in the case of Elvis's survivors, they REALLY didn't like the Viagra thing), there's nothing they can do about it (and really, Elvis's estate tried). That's what I love about the music industry. I say they deserve every penny they "lost" do to downloading.