This is chrome version 22.0.1229.94 on a windows7/32 bit machine.
HTS Tvheadend 3.3.82~g8191e13
> And does it work if you keep searching - so, for example, select a programme name, then select a channel filter, then maybe change the channel (e.g. to a +1 variant), then reset everything?
Yes, it appears to just work,also with the example you give: enter some letters reduces the programlist, then selecting channels works, after this I can again still add or remove letter with the wanted effect immediately. I dont use chrome that often for tvheadend (since on my machine I have other issues like with the embedded vlc player it appears) so I cant tell you if it works every time, but in general the filters seems to work just fine from the few tests I just did.
> Does it refresh every time, or do you ever have to hit the refresh symbol in the bottom left of the screen before you get the right results?
I dont need to hit the refresh symbol during the tests I just did (again, this is no "long term usage" ).
Alex.
PS
About the win/chrome versions:
Only difference I notice with your windwos version is that my chrome is 32 bits, and windows 7 is also 32 bits in my case ( while you have 32 bits chrome on a 64 bit install)
TVHeadend I use is the latest version