I am new to this, so please be gentil. Have an old roku 2450D. Booted up, got software update, hooked to LG circa 2009 product code 47LH30-UA.AUSVLUR, serial # 912RMJF110028. Roku is hooked direct to HDMI on tv, Dish box 722 goes to tv via rbg rca phono jacks. Also, outdoor antenna is connected to Dish box for locals.
Got trials for several services. Get Roku menu clear as a bell and remote works. Can select content and it appears to load indicated by the green bar on screen. When the content starts I get sound from the content but blank blue screen. Tried 6-10 programs and all did the same. Rebooted Roku with no change. Have used the HDMI cable before without issue. please help