i have Comcast tv set to hdm2 can i use my roku 2 and how

[caltie3]

want to know if can use Roku 2 when cable co set tv to hdn2 and how to connect

 

[hang-the-9]

What your cable box set is p lugged into does not matter. Plug in the Roku to an HDMI port and just switch to that source when using it.