Commercial matches for I know this much is true
- BTN LiveBIG TV Spot, 'This Iowa Alum Is Making Sure Children Know How Much they Matter'
- HBO TV Spot, 'I Know This Much Is True'
- TrueCar TV Spot, 'I Wonder How Much This Costs'
- DIRECTV Free Preview Event TV Spot, 'HBO and Cinemax: May 2020 Free Preview' Song by Niall Horan