The thing about home theater is there are not enough standards or rather too many. Yes I can work most setups with HDMI cables, speaker wire and such but one time you'll have a nice Logitech Harmony Hub to setup and the next a mix of gear.
Where your good nature helps is the client that wants it just so. Also you get better at patch and paint as some HT setups are all about the looks.
I'm an electrician for a Custom home building company, and the company wants me to get into home theatre installation, possibly even home automation also. Can anyone point me in the right direction? What kind of education and training do I need and how do I get it? Thank you