When I switch my TV from cable mode to Roku, the screen is blank until I push on my Roku remote. Until recently the Roku screen showed up automatically when I switched. How do I get this to return to the old way so I know what mode the TV is in if I have not followed this? Thanks. Happens with both my Rokus
See if there's a "power saving" option under Settings->System->Power and disable it if it does.