I've seen a version with commercials on P2P networks that has original commercials. It is an .AVI or something like that. As for a quality DVD release with original commercials, I don't know of one. There are several different copies of the Holdiay Special, from VHS copies when the show first aired, and therefore no one real set of "original commericals" because it would depend on the particular TV station that aired the show as to what the commercials would be. If you want a cleaned up copy of it, the best one is supposed to be from Rikter, the "KCCI version" that is reported to be from a broadcast tape. The only commercials included is a kenner toy commercial that did air with the show.

EDIT: Missed the reply from Russs15 above. Apparently there is a DVD version with the commercials left in. There are several different copies of this floating around, of various qualities.