is there challenge cup highlights of all the games on anywhere?

There's the televised games on iplayer, both the full games and highlights.

highlights of all the matches from round 5 on there?

Were there any highlights AT ALL from the matches shown??

One was a 60 point blow out... in front of a handful of people

Another one was a 35 -34 score involving 2 teams that were at best useless, at worst totally hopeless... in front of less than a handful of people.

There seemed to be more Police than supporters at that game from what I saw.

as insightful as ever Bazza
As for teams being "not very good", your sharkies are probably the worst team I have seen on TV this year in either country averaging 14 points each game so far and only recently snapping a 13 game losing streak . Not sure how qualified you are to discuss quality of Rugby on offer.