Hi,
I have a HDHome Run (DVB-T) model and it records in TS just fine (Tools --> Options --> Television --> Recording --> Format --> TS). During Timeshiting, MC also records in JTV at the same time so you can record and watch at the same time but this should disappear after the recording is finished.
The TS Recording should be a single TS file in the root of the folder you specified and the JTV in a subfolder.
Thanks
Nathan