YouTube TV when traveling:
https://support.google.com/youtubetv.../7193651?hl=en
Our experience traveling is in accordance with the info shown in the above link. For example in southern coastal Georgia we got a Welcome to the Jacksonville viewing area even though our "Home area" remained the Boston area.
When at home we had set the WMUR evening news and the NH Chronicle to record each session. Then when on travel they can be viewed once the live session is over. We were not able to watch them live when in another viewing area.
Alan