Actually, Mr. Frid has the right to control the "commercial exploitation" of his image, whether in video or photography, even if such media were acquired during a public event. Newscast and b-roll used to promote the actual event are one thing; sales by private parties of those images and video are another thing altogether. If Mr. Frid (and any of the other actors/writers/techs/etc. of the show) were negotiated with and properly compensated for such sales, then this sale of materials might be allowed. Sorry, but I have to agree that sales of pictures and video of the conventions and such is inappropriate and, possibly, illegal-- unless sanctioned by the promotors and participants in the event. (Why do I say this? I'm a union rep for actors [though not those represented by AFTRA, which covered DS], and this is one area I constantly have to police.)
Brian