first time poster here and I was hoping to get some answers ... I recently purchased a samsung8000 series 3d tv .. which I am mounting on the wall with my yamaha receiver about 25 to 30 feet away in the closet .. after leaving my local best buy and speaking to the guys there they told me I need a very expensive HDMI that a regular one won't cut it because of the length .they recommended a audio quest cinnamon hdmi cable with Ethernet ... so I guess my question is ... is this true? will the picture be laggy with a normal wire? any help is appreciated .. thanks in advance