Why not ask the sales person in the shop? It's a quite normal pre-sales question. If they are unable to answer pre-sales questions, I wouldn't trust them for after-sales problems.
Help. I want to buy a new Sony kdl55hx850 led but I just heard how bad the internal speakers sound at the store. I have a 11 year old Yamaha HTR-5560 AV receiver with no HDMI, but 2 optical inputs/1 optical output. I would like to run a sound bar for basic sound, and then go to 5.1 surround with my other speakers when I am watching a movie. Can I do this? If so, how would I hook it up?