The swap button does not swap tuners on the 3510 HDPVR
I am told the "Last" button actually swaps tuners when you use it. So the previous show you were watching would continue to build a time shift buffer. Test it out and let me know.
As mentioned above by kevinds the "Swap" button not working is a known issue.
Yes, known issue, it is an issue with the DCX3510, not the remote.
Hopefully someone is working on it
The "LAST" button works.
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