Tuesday’s #13 Michigan/#11 Virginia Tech Orange Bowl earned a mere 6.3 overnight rating on ESPN, down 25% from last year (OSU/ARK: 8.4), and down 28% from 2010 (FLA/CIN: 8.7, FOX). The 6.3 overnight is the second-lowest ever for a Bowl Championship Series telecast, ahead of only the 2009 Orange Bowl (VT/CIN: 5.9, FOX). Three of the four lowest BCS overnights have been for games on ESPN, according to Sports Media Watch.