Burg Review: "Poirot Investigates!" a funny, fussy affair from Open Stage - TheBurg
Amazon.com: Poirot Season 7 : David Suchet, Clive Exton, Anthony Horowitz, Brian Farnham, Andrew Grieve, Agatha Christie, Brian Eastman: Prime Video
Amazon.com: Poirot Season 5 : David Suchet, Hugh Fraser, Clive Exton, Bill Craig, Anthony Horowitz, Douglas Watkinson, John Bruce, Peter Barber Fleming, Brian Farnham, Ken Grieve, ITV: Prime Video