My Samsung LN46A550 TV works with cable and old DVD player but it *noj longer* works with my Apple TV (1st Generation) or inexpensive Roku using the HDMI ports. I get odd colors and then the TV restarts itself. I could've sworn this TV used to work just fine with my 1st Generation Apple TV, back when this TV was my primary TV. Via Google searches, my only GUESS is that this TV model is not MHL-enabled but the streaming devices are? Thank you in advance for any guidance!
Unfortunately, the solve was only short-term as the TV now again takes about 2 or 3 tries with discolored picture and violent audio to successfully connect to the Roku in 720p. Once connected, works fine, but it's about 2-3 minutes each time. One thought was trying to put the TV in a sleep mode rather than turning it off, but I don't see this function as an option.
