There are some using this key word. https://www.youtube.com/results?search_query=奧運國家隊代表團訪港

A few results are from tvb if search using https://www.youtube.com/results?search_query=奧運國家隊代表團訪港+tvb


Didn't find any torrent for Chinese Olympians visiting HK or Macau.

Your best bet would be youtube using some or other combinations of the above words to see if you find what you want/need.