Best way to guarantee seeing the whole race including quali is to get the WEC app, you can pay on an individual race basis.
HOWEVER,
I have the season package, the first two races I had no problems, when it got the the Spa race, issues.
Between Imola and Spa they introduced WEC TV, which the app transfers you to. I had major problems making this run properly using Chrome on my iMac.
I did find a work round, it ran fine on my iPhone and iPad, so I airdropped it to my iMac or Apple tv, bingo.
Might only be a mac problem and I had replaced my 10 year old iMac between Imola and Spa so now running the latest IOS. WEC have been notified of the issues I have had and are looking into it, but I'm not holding my breath.