Production of three sitcoms filmed before live audiences has been halted because of the Hollywood writers strike, networks said Tuesday.

"Back to You," starring Kelsey Grammer and Patricia Heaton, will not return from a planned hiatus on Wednesday, said Chris Alexander, a spokesman for 20th Century Fox Television.

In addition, the sitcoms "'Til Death," which airs on Fox, and "Rules of Engagement," on CBS, will also stop production immediately because of the strike, according to a Sony Pictures Television executive not authorized to be quoted who requested anonymity.