Yes, Pro4K and V2TV supports time-shift
What is time-shift?
TimeShift feature provides users with the ability to record a stream of the current IPTV channel in order to listen to / watch the recording afterward. TimeShift recording is saved to the STB local storage known as a memory buffer. Recorded audio/video fragments can be played back during current recording or after its termination, being started from either time position within the record. To pick a starting time position of playback, forward/rewind command is used.
On Pro4K and V2TV, you will see many channels with a clock icon, they are Time-Shift enabled channels.