I've been to the tapings during the past few years. You definitely don't need to get the special tickets either. Sure, they help to get in key viewing spots. But after a while, even those spaces start to get thin; and then anyone can just fill the space. I remember being WAY in the back when the Jonas Brothers taping first started, but eventually got REAL close. I would've touched them (appropriately though) if I was a manic 13 y/o girl.
But like others have said, it's not the best experience ever. Yeah, it was cool to me, because I'm local; and it was just something totally different to experience at the parks. But if you don't go to Disney often, I wouldn't plan on making a day of it.
And as far as the parade, you'll at least get to see some characters and floats that are quite rare (the only time I've seen Giselle from Enchanted). But even watching that is time consuming.
An idea of how far back I started (this actually looks closer than I was). The whole hub was packed all the way up to the Castle
Get Your Drool Napkins Ready!!! by
Scott Smith (SRisonS), on Flickr
A lot of people eventually left, and they were trying hard to get people to fill in the space up near the Castle.
This accurately shows how close I was to them. And this is from behind that little stage in the 1st picture.
FANdemonium by
Scott Smith (SRisonS), on Flickr
Come And Get Your Jonas Fix!!! by
Scott Smith (SRisonS), on Flickr