I am currently using an 8 year old Plasma (TH-P42X20K) and planning to upgrade to TH-55EX600K.

I am currently streaming Netflix using Google Chromecast. I saw that the 55EX600K has a build in Netflix app. I read that only certified Netflix Smart TVs can stream above 480p resolution. Would like to check if the Netflix app in 55EX600K can stream HD?

Also my current setup is I am using Altec Lansing speakers connected via the TV's composite OUT. From 55EX600k specs, I don't see a composite OUT. Only see there is a Digital Output and a headphone jack. So if I want to continue using my Altec Lansing speakers, I would need to connect it to the headphone jack?

Thank you for the inputs and any other comments on the 55EX600K.