This cable will stick out roughly 1.5” from the TV HDMI port. Also the cable would likely fail over time due to the 90 degree kink to go down to your roku device. Best Buy sells a few different adapters you can use with a standard HDMI cable to accomplish your goal. Here are a couple examples... AudioQuest - 90° Wide HDMI Adapter - Black Model:HDMI90W SKU:9511138 as well as the Rocketfish™ - HDMI Universal Swivel Adapter - Silver Model:RF-G1181 SKU:5760701. Hope this helps!