The cable feeds to 2 TVs and DVDR and VCR. My system was set up more than 10 years ago. At that time, there is no such thing like bi-directional splitter and passive return path amplifier for cable TV (just normal splitter and RF amplifier). If I upgrade to digital cable, do I need to buy these new accessories to split the cable signals for all my devices?

Tags: Also, Bidirectional, Cable, Digital, HDTV, Need, Through, Upgrade, When