There are plenty of ways to use your TV as a computer monitor
How to use ChromeCast Screen Mirroring on PC to TV (Desktop Mirroring Tutorial) - YouTube
Wireless HDMI Display Adapter for Streaming | 4k Transmitter and Receiver, Streaming Client Compatible with Chromecast, for i-Phone/iPad/Android/iOS/ Windows/PC to HD TV/Monitor/Projector: Amazon.co.uk: Electronics & Photo
Can you use a Chromecast with a monitor? | Android Central
How to get chromecast on your monitor/ tutorials #5 - YouTube
LG unveils first 4K HDR PC monitor and first Chromecast monitor - FlatpanelsHD
Google opens up Chromecast with new streaming SDK for iOS, Android, Chrome | Ars Technica
How to Set Up Google Chromecast | PCMag
How to Turn a Computer Monitor Into a TV - WSJ
How to Display Windows Desktop on a TV Using Chromecast
How to connect Chromecast to a PC CPU in particular - Quora
Teachers: Use ChromeCast for Wireless Presentations on Desktop and Mobile – Ted Curran.net
A Beginner's Guide to Google Chromecast - ScreenCloud
LG will show off a Chromecast-based PC monitor at CES 2017