I recently have to install tuning adapter for my TiVo box in order to receive certain high definition channel from Time Warner . these adapter drop the signal down from around 93 to 44 as measure by the TiVo signal strength function . I have a passive 4:1 splitter in the attic which work fine until these adapter be install . after the tuning adapter be install some of the channel would get the dreaded digital signal drop-out . I install this signal booster which take about 15 minute - most of which be just to tie the cable back neatly . now I have 90 to 100 signal level on all of my TiVo box and the picture quality be great . I do not use this on my internet connection as it be run separately from my other cable . product feel very solid and well build . I have only have it a couple of week , so can not comment on the long term reliability , but so far it be a great little unit .