Absolutely love my four and the local price was perfect. Two were totally free... price plus tax = exactly $40.
It is a fantastic device for installing and fine tuning new DTV setups. It even helped me locate and replace high(er) loss RF connecting cables and a noisy distribution amp. It never forgets a previously tuned digital station (unless told to do so) and has a manual frequency selection with on screen all the time tuning meters for finding that perfect antenna pointing direction.
Gave new life to my VCRs and DVDRs. Using three or four of the eight built in programming slots, I have it tune various digital stations and feed them dumbed down to the DVDR or VCR. Unlike a VCR, the Zinwells is able to change channels at programmed times AND even override your manual setting one time per program. You have the unit on and are watching something. At the programmed time, the Zinwell changes channels. You decide to change it back to whatever you were watching. No problem until the next programmed change. It outputs to channel 3/4 and its Line outputs.
Read some complaints about weak pass through and poor time keeping. A splitter on the TV and Zinwell inputs will fix that. Of course the Zinwell output to the TV is then limited to strictly line out. Clock?? Never noticed except during the DST fiasco.