They should take an average of 7 days for all shows irrespective of the telecast. This will correct the base.
Else average SP shows for 5 or 6 days in line with the other channel.
Then do a comparison.
The thing is that the other two days other shows come on colors so it's not right to compare that way too.
Or take best of 5 for SP and average that or assume average trp of colors for those extra 2 days and divide by 7. Comparing a 7 day average and a 5 day average will not reflect accurate results.

