These are the things that jumped out at me  :)

"Maybe you don't have room in your home for a mancave."

I believe Man Cave is two words, but I could be wrong.

" The majority of home theaters have a minimum of 5 speakers and 1 subwoofer. Hence, the 5.1 monicker."

it is spelled "moniker"  (usually)

"Do you have a large DVD movie collection? Do you want to stream Netlix"

typo on Netflix

"What if you could hide your cable box, apple TV an other devices directly behind the television?"

and other devices

And if I want to go full Ernie on you:

"Don't worry, it's easier than ever to start designing your smart home. We're here to help."

Should use a semi-colon after worry, not a comma.