I can't check if the display has HDCP with would use a simple HDMI to DVI-I adapter.
If the display has HDCP, figure a few dollars if the display didn't arrive with the usual adapter.
I have a Dell HD computer monitor (23") that has two usb ports, a VGA port, and DVI-I port. I would like to use the monitor as a television as well as using it to get streaming data from chromecast or roku (like the roku stick). I know I need an external TV tuner, but is there a tuner out there that would allow me to stream video via chromecast or another streaming tv device? Or should I just get a cheap TV and save myself the hassle? Thanks!