As above, I have a Chromecast gizmo but my TV doesn't have an HDMI port. It's about 9 years old, so it has other ports. I have one scart port free which says 'RGB, Video and S-video' beside it and a 'Component Video' Panel with 3 socket holes labelled Y (green), Pb (blue) and Pr (red).
Is there an adapter I can get to plug into one of these that I can plug the chromecast into? And where is best to buy such a thing? There seems to be a lot of options, and prices vary dramatically for things that look to be identical spec. Bit like bikes to the outsider I suppose!