BBC4 will devote this forthcoming Friday, the 13th of March, to Rough Trade Records.
At 9:00p.m. there is a 90 minute documentary charting the history of Rough Trade, followed by 'Rough Trade At The BBC', a 60 minute show featuring performances of Rough Trade artists from the BBC archive.
Both shows are then repeated after midnight.

The Smiths are definitely featured in the '...At The BBC' show, and given that at one time The Smiths WERE Rough Trade records, they will almost certainly be extensively covered in the main show.

One can only hope for new interviews and footage.