WHEN LOUIS MET... JIMMY SAVILE (2001)

A fascinating odyssey with an unknowable man; an evasive Savile claimed girlfriends gave him "brain damage" as he showed Theroux the clothes worn by his adored mother, "the Duchess", that he kept in their Scarborough flat long after her death.

THE MOST HATED FAMILY IN AMERICA (2007)

Theroux looked on as the virulently anti-gay members of the Westboro Baptist Church (motto "God Hates Fags:) picketed the funerals of American servicemen. 

WEIRD WEEKENDS: SWINGERS (1999)

Probably one of Theroux's best-remembered trips, when he joined a group of Californian "swingers" and attended a partner-swapping party. It was a surprisingly poignant exploration of love and betrayal.

WEIRD WEEKENDS: SOUTH AFRICA (2000)

The episode where Theroux (eventually) met the formidable, powerfully unpleasant Afrikaner separatist leader Eugene Terre'Blanche.

WHEN LOUIS MET... THE HAMILTONS (2001)

Christine Hamilton got a bit tipsy and flirty in a documentary that provided an accidental scoop when Christine and husband Neil were arrested during filming. (They were later cleared of involvement in an alleged sex scandal).