then all is hunky dory.
A tv aerial can be 40 years old a function perfectly with a digital signal it very much depends on the quality of the original parts used
We will say now components are not a patch on parts back in the 70s,we encounter 70s installs a lot and they still function a spot of maintenace with an anti corrosion spray is very often all they need and will probably be up another 30 years