In 2003 a spin-off series was introduced, and the books were selling better than ever.

He also appeared on these spin-off series, in 2004 and 2007.

The character eventually moved on to her own spin-off series, Gloria.

Big Brother 3 saw numerous spin-off series' occur while it was on air.

He decided that a child-orientated spin-off series with K-9 might be just the thing.

During this time, the franchise also moved into several new spin-off series.

Instead, a spin-off series set 20 years after the end of Shaider was given the go ahead.

The finale may also be used as a device to create a spin-off series.

Three spin-off series have been aired as of September 2008.

Family Matters was a spin-off series given to this character in 1989.