Tom Hughes. Oh boy.
How can you not fall in love with smiling Martha Costello QC
Finally, after a delay of over a year, it looks like Room at the Top will be aired! According to the BBC website, it will be aired on BBC Four at some point during BBC Week 39, which is the week beginning Saturday 22nd September!! No specifics yet on whether it will be both parts or just Part One that airs.
(Thanks for the submission tipping me off, Jennifer!)