The TiVo has an inbuilt internet connection, separate from the home broadband. It sounds like this has failed.
On the front-left of her TiVo, there are a series of green lights. The second-from-left is the "online" light, it has a heart symbol on the box. If this is flashing, it means the internet connection isn't working - rendering TV guide updates, OnDemand & streaming impossible.
Static on is what you want to see - but a flashing light is most likely a box fault. The TV channels are carried separately, as is the home broadband.
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