I don't think anybody really remembers The Saturday Show.
Apparently Shirley Crabtree was in the running to host it and apparently was billed as such (though through his better known stage name) up until days before somebody somewhere changed their mind and replaced Crabtree with Isa St Clair and Tommy Boyd. Or Crabtree walked out, nobody really knows.
Fascinating clip from that uploader as usual. Also interesting to note that Michael Underwood presented the link into the first episodes of the 1999 and 2000 relaunches of Live and Kicking as well, which means from 1999-2001 he introduced three continuous relaunches of CBBC's autumn Saturday morning show!
A former member
Plus two on ITV before being sacked or let go etc.