It's only 32 virtual kilometers. I have no idea if the actual race will last one hour, or if just the broadcast will last one hour.
Broadcast starts at 15h30 CET. It can be viewed on Sporza, but that will likely be geoblocked outside of Belgium or Europe, and Belgian national TV "één".
GCN seems to be a lot of people's best bet. (Though also geoblocked in at least Belgium).
Roche and Bettiol have permission from their significant others to sweat up the living room and drip oil on the carpet: others are dispatched to the garage. Evenepoel may have made a wise decision for cooling reasons by opting to put his trainer outside.