Takei and Altman had been in a relationship for almost two decades before tying the knot in September last year. The couple are quite happy and eager to take part in the show.
The Daily Express quoted Altman as telling the New York Daily News: "George and I are thrilled. It's pretty historic for us. It's going to be a great experience for both of us to see how well we really know each other after 22 years together."