Seriously red dragon i got Zl and i must say I see no rubbishness in display. Everything is crisp and clear and even videos playing amazing with so many details. Showed to my friends and they were amazed too. Whoever see his phone from other angles must need help. I don't know how you watch TV in your home.
Have you compared the ZL screen with any htc 1080p panel or iphone 5 or even Lumia 920 for that matter.
Of course you will be amazed when you are comparing with older phones.
There are people with perfectly normal 6/6 vision,who can not find difference between ipad 2 and 3 and there is nothing right or wrong in it...but that does not make ipad2's panel better than 3.
If you are happy with your phone,enjoy it!
I wrote narrow viewing angle is a MINOR flaw for a mobile screen as it is mostly viewed head on.
The MAJOR flaw of the Z/ZL is the poor contrast ratio and washed out colour(and the use of another stupid SW to cover up a very ordinary,border lining flawed panel,and it is the Sharp panel)
Regarding my tv watching habit,sadly I have not been able to watch tv for a long time.