To Turn a room into a threater you will simply just need to get a 32” Class LED HD Smart Roku TV”.  Then get it either hanged on the wall or put it on a stand somewhere around your room your of your choice and get surround sound bluetooth speakers.

Put 2 connected speakers across the room and turn off any light you have on or close any sunlight seeable. Last step all you do is turn on a movie on netflix or any app or site you use and now you got a threater in your room.

Link:

https://www.amazon.com/Bluetooth-Surround-Sound-Speakers/s?k=Bluetooth+Surround+Sound+Speakers