4 teams in Monday's episode with 3 going through.
Then on Tuesday the 3 are whittled down to 2,
Wednesday another 4 teams down to 3 and on Thursday down to 2,
Friday the 4 surviving teams battle for 2 to go through.
So the following week must follow the same pattern.
And the week after must be the last 4 over the last 4 days (no details known yet as format or on which days)