After watching a recording and back to live TV on our main TV connected to the BlueSky main unit, the live TV program is buffered and we can go back and watch the part of the program that is buffered. However, this doesn’t work the same with the two portals. When watch live TV at the portals, the program is buffered, you can go back, but the buffer is cleared after you watched a recording and you cannot go back. Is this normal? Is there a fix or setting that can make it work the same way as the main unit?