Found this on a YouTube link where someone made a full rip of the extremely rare VHS, Drake & Josh: Go Hollywood - The Movie. Note: This has opening previews. Link:
It has been released on DVD and it's much easier and cheaper to find on eBay or in general. The VHS is rare because it was released in 2006 and VHS' were not being made as much since DVD's have better quality. It's just a very hard tape to own that I thankfully own myself. The DVD also has previews.