The show aired several weeks back to strong reviews and an audience of more than one million viewers.
This project launched independently in 2021 as a feature and was Grierson nominated.
They say they pitched their show unsuccessfully to three Channel 4 commissioners.
Michael SheenWiktor Szymanowicz/Future Publishing via Getty Images
Channel 4 claim the commissioner ofSecret Million Pound Giveawayhad no awareness ofBank Job.
Sheen said the idea came from U.S.-based talk show host Oliver.
A Full Fat TV spokesperson toldThe Guardianthe company independently developed and pitchedMichael Sheens Secret Million Pound Giveawayto Channel 4.
This isnt the first time Channel 4 has been caught up in a plagiarism row.
Sheen, Full Fat and Optimistic Productions have been approached for further comment.
