As with all devices that use software, newer updates eventually make older devices run sluggishly. So my 43” Sharp Roku TV is running pretty sluggishly. Lots Of hesitating, blank episode pictures, etc. So, my question is, could I plug a brand new external Roku device into my old roku tv without them freaking out and increase the speed and capability of the roku operating system?
Yes
It should work. The only issue would be if the Roku device and TV tried to use the same remote codes. I think the TV's are usually a different code, though, so I don't think that would be a problem.
As @andyross mentioned, if the new Roku uses an IR remote, you could have the remote attempting to control both devices. I used an Ultra connected to a Sharp Roku 4K TV with no issues, but the Ultra uses a WiFi Direct remote. But the two remotes never interacted with the wrong device.
I'm wondering more how a new roku plug in would work on an old Roku TV (TLC)? Ours is sluggish. Doesn't support apple TV. No longer supports HBO Now. Amazon and Netflix freeze. Would I have to use both the old (TV) and new (Roku plugin) remote? Or would the new remote work to both turn the TV on, toggle to AV inputs (cable antenna, DVD player) and to select apps, etc.?
@CouchPotatoes wrote:Would I have to use both the old (TV) and new (Roku plugin) remote? Or would the new remote work to both turn the TV on, toggle to AV inputs (cable antenna, DVD player) and to select apps, etc.?
When I connected my Ultra 4640 to a brand new Sharp Roku TV, I had to use both remotes. But that was because my 4640 remote didn't have a power button. I have a small Insignia Roku TV that currently has an Express 4K+ connected. I can control everything with just the Express remote, but that's because it only has to control the power and volume. If I want to switch to OTA TV or a different HDMI port, then the original TV remote is needed.