OK that "pledge jump" site finally opened and turned out as I had suspected as the selling/pledge site for Det-roy-it Public Television.
clicking on a DVD picture
got me
http://www.detroitpublictv.org/bonusitems/cash.htm
Unusually for a pledge offering instead of asking a fixed "silly money" grossly inflated donation price all items shown have a "Fair Market Value' price: that indicated for the same 2 DVD set they say "Includes Signal and MemberCard Plus
FMV: $54"
that is for the top DVD and bonus audio CD package the DVD or CD on their own have lower suggested donation and FMV prices