Respect MP George Galloway is struggling to sell tickets for his one-man show that starts next month.
Mr Galloway's TV appearance drew criticism
He has sold only 34 tickets for the show at the Deco Theatre in Northampton and only about 100 in Reading.
More than 800 tickets are thought to remain unsold for The Mother of All One Man Shows, at the 925-seat Deco.
The nine-date tour, also covering Cambridge, Southampton and Halifax, gives the chance to "meet the real MP and not the fictional media version".
An advertising board promoting the show at the Deco, on the 25 February, was also vandalised after Mr Galloway's eviction from Big Brother.
'On the night'
Paul Scarbrow, general manager of the Deco, told BBC News said: "I would be surprised if the show was a sell-out but I do think we will see a good turn out on the night.
"If this was a rock group or a comedian I would be worried but he is who he is and he has been locked inside the Big Brother house for days so we have not been able to publicise the event.
"Tickets went on sale early January and there are also tickets in reserve."
George Galloway's first date on 9 February at the Concert Hall in Reading has sold about 100 tickets in hall with a seating capacity of 550.
Spokesperson Bobby Lonergan said "We would be happy if we sold about 250 tickets.
"This would be realistic with this kind of genre of show."
The Respect MP, who was not paid his Commons salary while on TV, has been accused of letting down constituents - and ridiculed for impersonating a cat.
Critics accused Mr Galloway of arrogance and self-interest for appearing on the show, missing issues important to his East London constituency, such as a debate on the London Crossrail scheme.
Mr Galloway was the fourth person evicted from the show on Wednesday, having got 64.7% of the public vote while up against former basketball player Dennis Rodman and model Chantelle Houghton.
The MP said after his release from the television programme's house that he was "amazed" his impression of a cat while on the show, an antic well-documented in the press, had caught the nation's imagination.