How much does it cost to play the games, though? It's not just a kick about in the local park with your mates
Lions players, coaches, staff etc. will all get paid,
The stuffy old farts in lions blazers will need their port glasses and prawn sarnie stashes replenished,
Same with their SA opposition,
Sponsorship money will take a hit with no fans, as well - beer brands will pay extra to be the Lions "official beer" knowing they'll sell a boat load in the stadia etc., media/sponsorship appearances and talks etc.
and then the actual cost of using the stadium (stadium staff, insurance, rent if it's not owned outright)
The PRL lost a significant sum holding a crowdless prem final at Twickenham (so much so that they wanted to move to a club stadium, and even looked at football stadiums, as they'd be cheaper to run), multiply that by every mid-week/test
All going to eat into the TV money - and I doubt the TV money is anything ridiculous to start with.