Entering MyTV with timeshifting ON produces no Video and no sound randomly.

This can be fixed by sometimes turning off then on timeshifting however it does not work everytime.
It seems as if the live.ts buffer is not working properly.

TV works normally with Timeshifting Off.
I have only seen this on DVB-T and confirmed by Rasterbur on IRC - so it may just be a UK issue also.

h4. Steps to Reproduce
Start TV with timeshifting on
If you have TV ok then turn off timeshifting then on repeatidly to try and duplicate it.