If the TV only has HDMI inputs then the best option would be to upgrade your old ROKU. You will get HD and a better experience if you do.
You could get an AV to HDMI converter but the money is better spent on upgrading the ROKU.
MERGED QUESTION Question from medicsweetpea : "No AV source to watch Roku"
medicsweetpea :
The new TV we just bought does not have the AV as a source to watch
Roku
I can pick it up in the component option but it’s in Black and white no color
Any suggestions
Which roku? It doesn't have an HDMI port? What cables does it have? Just the yellow red and white AV cables?
If the TV only has HDMI inputs then the best option would be to upgrade your old ROKU. You will get HD and a better experience if you do.
You could get an AV to HDMI converter but the money is better spent on upgrading the ROKU.