The picture of a Joey 3 doing 1080i HD content should be as good as a Hopper 3. Obviously it will not be able to do 4K content.
I would check the following:
1) Make sure that the video resolution on the Joey 3 is set at 1080p or 1080i and the aspect ratio is 16:9
2) Use Adjust screen to make sure the corner circles are on the screen edges.
When the Dish tech set up the wireless Joey at my sister's house, the video resolution was set at 480i. When I corrected the setting to 1080p or 1080i my sister was surprised since the picture was as good as the Hopper 3 picture.
Sent from my iPad using the
SatelliteGuys app!