I am now on my 5th cable TV box in 6 months. The last one lasted 2 weeks, The one before made it 6 weeks. I have NEVER in my entire life (78) experienced so many failures for a piece of equipment. I suspect every one of these failures is a result of lightning strikes somewhere in the area, as all failures have occurred right after a thunder boom. Somewhat surprising as in our community there are NO overhead lines. Everything is buried cable, so apparently a ground surge over the copper wiring serving our home is the culprit. My Comcast cable service has a lightening arrester installed inside their service box. The coax then comes from that box to my home wiring closet, where I have an additional TII-210 Coaxial Broadband In-Line Surge Suppressor (TII-210MF75F225-31) - cableTVamps® arrester installed BEFORE the cable connection is delivered then to the telephone equipment, the network modem and the TV system. The TV system (TiVo Bolt box) ONLY has been the single piece of equipment to fail each and every time. The TiVo Bolt box is on a (good) UPS system along with an 80" TV, DVD drive, sound system, and Ethernet distribution switch. No other equipment connected to the incoming coax has ever been damaged, but the TiVo boxes. Apparently the TiVo Bolt box is more sensitive to surges than all the other (phone and computer) devices also connected to the incoming cable. Nothing else (but the Bolts and the original Roamio) have EVER failed. A Comcast tech has been here and stated the entry point lightning protector is properly connected. I have now replaced almost $1,000 worth of TiVo DVR boxes, and that just doesn't seem right. I can only conclude these devices are badly designed and are overly sensitive to surges on their coax input. Have others had the same problem and is there a Class Action suit needed to get TiVo to listen? I have written to enginnering suggesting there is a serious issue and offering to help in any way I can (I'm a retired electronics design engineer with many products under my belt) and I fought for months to get responsible conversations going and finally had to write the President of the company to get any action, but it hasn't helped.