(single board Seattle system)
I have had a lot of questions on what would be needed in order to add the (NBA Showtime) to this system. The fact is, there is no add on kit to do this. Unless you have the 3 board Vegas system you cannot use the Blitz / Showtime kits.
If you have the single board, Blitz or Blitz 99 then I do offer the Blitz 2000 Gold kit for this.