Partial Source: Pwinsider
According to reports, TNA Wrestling moving the iMPACT! Wrestling replay to Saturdays was a joint decision between TNA and POP TV. The replay airing immediately following the first-run airing wasn’t bringing in good numbers so the decision was made to move it to Saturday in an attempt to see whether a secondary show could bring an audience in on the weekend.
For what it’s worth, POP TV is said to be fairly happy with the numbers TNA iMPASCT! Wrestling has brought in for them.