Nearly 57 percent of households that participated in a test returned their DVRs because they did not want them, according to new research sponsored by ESPN, MediaPost reports. The study was designed to reveal what the viewing- and advertising-related impact of DVRs would be when given to "non-early adopters." Of the 157 households that participated in the test, 90 returned their DVRs various reasons, including complaints about the installation process, the cost of DVRs, or the incompatibility of digital set-top boxes with home decor. Among those who opted to keep the DVRs, there was an indication that they continued to view TV commercials, even during fast-forward mode.