I have a Slingbox 500 which receives the video signal from a sat box by an Hdmi cable. In remote, the video stops often and the imagine results blocked for short time.
I have supposed that the output resolution of the decoder was too high (1920p) and so I reduced it at 720p. The result seems better, but not always. Maybe that the internet adsl line is not too high, but I would know if it necessary to modify something in the setup of my Sling 500 in order to have a fluid broadcast, at the better resolution possible.