Very good product, but ... 23

The product is good quality, well equipped with connectivity, but I am having some small problems:
- There is an appearance of small white dot on the left side of the display, nothing embarrassing, visible especially when the TV must be in standby image.
- It has a compatibility problem with my registration tuner, 2 must use the same signal.
- Finally, the optical output should not be able to broadcast Dolby Digital or DTS is my amp that should simulate.

Otherwise no worries else works fine