That was actually a regional contribution studio rather than a replica. Later used by Nickelodeon of all people. It used to be used by Bradford Uni but it might not be now they have their HD scanner.
Despite having a studio and recruiting a Bradford based presenter and having loads of cupboards with wires and plugs, it never once made it to air neither live nor in any pre recorded packages I don't think.
That floor is no longer on public view since the museum was remodelled as the National Media Museum. I haven't been in many years but in the late 90s the TV exhibits were stuck in about 1986.