Porterhouse Blue

.....as another reviewer suggested.

Scullion may have served on the "wrong side" of the divide at Porterhouse and thus had no letters after his name but it's quite clear that neither Sharpe (I've read the book) and Malcolm Bradbury who adapted the novel saw him as dim.

Anyway in the best traditions of the underdog turning the table on his "betters" Skullion understands how to deal with TV journalist far better than any of the Masters.

As an aside the acapella music especially dives in Omnia" (Latin for "Rich in Everything") as sung by The Flying Pickets heard throughout the series was excellent.