I suspect a Toshiba 28W23 TV is a CRT type in which case it'll probably have a couple of scart inputs.
As to a GX270...I have no idea if that's a laptop or desktop but you need to tell us what type of output sockets it has for an external monitor.
If it has an S-Video output that would probably work with an S-Video to scart lead, but to be honest you're not going to get a great picture on a CRT Tv.