Given the task definition and input, reply with output. Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Which 1985 TV series starred David Suchet in the title role about the proposed construction of a motorway through Cleeve Gorge it also starred George Cole, Julie McKenzie and Simon Cadell?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
david suchet