I got my hands on the DVB-T2/DVB-C tuner module for the Wetek Play the other day via WorldOfSatellite, so I've been having a play with this.
The DVB-S2 module in the box was fairly easy to remove, you just push the clip on the underside in (I used a biro rather than the screwdriver shown in the video on YouTube of someone swapping the tuners as I didn't want to damage it!) and pull the tuner out. The new module just clicks into place as you push it in.
Again, the module is recognised straightaway, and once I'd added the multiplex details for Sutton Coldfield (TVHeadend uses the legacy list of pre-switchover multiplexes for the UK transmitters in its pre-defined lists which are next to useless!) these scanned in fine.
I've found an issue though in that it doesn't like the way the HD Freeview channels (BBC One HD, BBC Two HD, etc.) dynamically switch between 1080i50 and 1080p25 mode. It will play the format that the channel is broadcasting when you first flick to it fine, and then when this dynamically changes to the other mode the picture wobbles and green lines appear over it. When the mode switches back to the original, the playback becomes fine again. I don't know if this is just with the output mode set to 1080i50 as I haven't tried the others yet, but I will do and probably put in a support ticket to Wetek/OpenELEC. Via satellite there's no issue as the HD channels are permanently broadcast as 1080i50.
I've been using the box in Devon this weekend, with the TVHeadend client set to connect to my home TVHeadend server in Worcester over the internet. The French HD channels via TNTSat play flawlessly! I guess this is largely down to our decent fibre upload speed (20Mbps) and the fact that Canal's new encoders mean that the TNTSat HD channels are now pretty low bitrate, but shows just how versatile TVHeadend is. The channels load their guide and play just as if I were at home. Channels with higher bitrate than the ADSL connection down here can handle (stuff like Das Erste HD) play and just drop some frames rather than constantly buffer, which I think is a useful design feature of the way TVHeadend encapsulates its streams.
I'm aware I'm not doing very "conventional" tests of the box, but I hope my findings are of interest to people.
I'm just reporting what I find in my own use of the box!