I have a media closet with a 50 foot HDMI cable connected to my TV. Since I only have 1 HDMI input going to the TV, I need to use an HDMI switch so that I can connect my Blu-ray and Directv to the TV using the single HDMI cable. My problem is that I have purchased 2 switches, a Rocketfish 4 port HDMI switch and a Kinivo 301BN switch from Amazon. Neither have worked. I saw a glimmer of the screen when my Blu-Ray player fired up, but then it went dark. Am I missing some compatibility issue or have I simply got 2 switches that are bad? The Directv and the Blu-ray both worked when connected directly.