A new study says that some TV shows are benefiting from digital video recorders. “Fox’s ‘House’ and ABC’s ‘Lost’ led a recent week in increases in absolute viewers, with “House” gaining 2.7 million viewers in DVR playback — on top of the 19 million who watched the show live — and “Lost” adding 2.5 million to its 10.8 million viewers seeing the show when it first aired for the week ending April 8.”