Human: Is it possible to build a DIY home theatre system? Assistant: 
Yes, it is possible to build a DIY home theatre system. You can purchase the necessary components online or at electronics stores and then connect them together using cables and connectors. You may also need to install speakers in various rooms of your house and adjust their placement for optimal sound quality. Once you have all the parts connected properly, you can use an HDMI cable to connect your TV to the audio/video receiver and start enjoying your very own home theatre setup.