There was an email address for the production company, lightship, that you could submit a request to be an 'extra' during the tapings on Friday and Saturday. There were no Sat slots open when I got to the site, but the two for Friday were still open. Sent out the email and 5 days later got an email back saying that I was in. But, as of Nov 13 no more slots were open.
I was told, in the email they sent me, that there would an email on Nov 28 with the vouchers we would need and any info that was necessary.
From what I understand, when we get to a particular turnstyle, we show our vouchers and are sent to a particular area to await further instruction. THen they will put us in whatever area they want. I guess you can just amble up Main St. (some have said they couldn't) and watch, but I don't know how many extras they are using. They also told us we couldn't take videos, photos or request autographs. So, I wonder how they will manage those without vouchers, coming in after park opening and taking videos or photos. But, it will be fun, if a bit boring since you have to stand around and wait for long periods of time while they set shots up. It's not like watching the regular parade in the afternoon.