To save a 30 second unfiltered clip of a broadcast stream:
1) Use HDHomeRun Config (GUI) to choose the physical channel.
Ensure VLC is not running for the next commands…
2) Open a cmd prompt and change into the HDHomeRun program directory:
cd “C:\Program Files\Silicondust\HDHomeRun”
3) Set the filter:
hdhomerun_config FFFFFFFF set /tuner0/filter 0x0000-0x1FFE
4) Save the stream to disk:
hdhomerun_config FFFFFFFF save /tuner0 sample.ts
5) Wait 30 seconds and stop the stream by pressing Ctrl-C.