Conversation so far:
What were the thames television shows in relation to Verity Lambert?
In 1974, Verity Lambert became Head of Drama at Thames Television. During her time in this position she oversaw several high-profile and successful contributions to the ITV network.
What were the Euston Films?
In 1976, Verity Lambert was made responsible for overseeing the work of Euston Films, Thames' subsidiary film production company, at the time best known as the producers of The Sweeney.

Question: What was her most successful project?
Self-contained rewrite: What was Verity Lambert's most successful project?