TVIS has nothing to do with valve timing OR valve lift, it's a variable intake system. In reference to the original question, VVTL-i was Toyota's original variable lift mechanism, and was only used on the 2ZZGE. However, they have since developed Valvematic to replace both VVTi and lift, but is not wide-spread yet (mostly on certain variants of the ZR engine). There are plenty of other variable valve lift systems by other manufacturers though, such as Valvetronic (BMW), VarioCam Plus (Porsche), VTEC/iVTEC (Honda), Multiair (Fiat), MIVEC (Mitsubishi), VVL/VVEL (Nissan), Campro CPS (Proton), AVLS (Subaru), and CPS (Volvo).