I woud wait
With the TV you have to go on the Picture Quality , the design will fall in to place regardless.
So even if you save $3k, i think wait for the OLED
The BL20s will be there for a while.
If the BL20s are a "special" are these the Mk1 or Mk2? - if you like them and the price why not get them and wait for the TV?