An article in Radio & Television Business Report suggests WDFN-1130 Detroit may have lost their contract to carry the Detroit Pistons basketball games due to interference from IBOC. The article blames KMOX-1120 and WRVA-1140.
The Pistons' Director of Broadcasting confirmed to RBR that coverage issues -- "...a weak signal..." was the reason for the change -- he wasn't sure whether IBOC/HD Radio was involved or not.
The games ended up on WXYT-1270/97.1, a station owned by a different company. (WDFN is a Clear Channel station; WXYT belongs to CBS)