Nobody Is Norman Wisdom(1973)

Nobody Is Norman Wisdom is a British comedy series starring Norman Wisdom as Nobody, a hapless man with no personality of his own. When he dons any hat, he instantly adopts the mannerisms and characteristics of its original owner. Living with his overbearing mother, who disapproves of his girlfriend Grace, Nobody navigates weekly adventures that transform him into wildly different characters. One episode sees him impersonate Peter Falk's Columbo with surprising flair; another plunges him into a brutal encounter with gangsters. The show mines comedy from Wisdom's physical prowess and timing as he shifts between personas, each hat triggering a fresh predicament that tests his ability to survive in situations far beyond his meek nature.