Tcl roku tv won't turn on?

My tcl roku tv Just stopped working last night while playing xbox ...our screen went black ...you could still hear sound ..just no picture. We got it to come back up for a minute ...but there was a small thin green line through the middle with and the text "tcl" doubled at the bottom in green ...after its... show more My tcl roku tv Just stopped working last night while playing xbox ...our screen went black ...you could still hear sound ..just no picture. We got it to come back up for a minute ...but there was a small thin green line through the middle with and the text "tcl" doubled at the bottom in green ...after its off again and the black screen will come up with a light white led in the background and you can hear it moving on the menu ..still no picture..weve even tried to hard rest it ..nothing
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