Probably your best bet, to find out whether you would like a Roku or not is to go to one of the channel sites and tour around.
I’m not sure of your particular taste, so I can’t really say.
We watch Kung Fu Theater but you may not like that.
http://streamfree.tv/apps/roku-private-channels/
Click at the top and you’ll get a good idea. Seems there are channels added all the time so even their list may not be complete.
I’ll go there. Thanks for the reply and the link netmilsmom.