We’ve gotten quite a few shows and movies, in the last few years, dissecting real telecasts from the annals of British news media. Prince Andrew’s disastrous 2019 Newsnight appearance yielded both a Netflix movie, Scoop, and an Amazon miniseries, A Very Royal Scandal. Princess Diana’s explosive Panorama interview, a major plot point in the 2013 biopic Diana, loomed large in the fifth season of The Crown. And now we’ve got Brian and Maggie, writer James Graham (a Crown alum) and director Stephen Frears’ (A Very English Scandal) two-part account of Labour MP turned journalist Brian Walden’s uncompromising 1989 interrogation of Margaret Thatcher, which helped to bring about the arch-conservative Prime Minister’s downfall.