Indeed, cloud cover and rain (specifically water) cause interference in DTV signals. Severity depends on your distance from the broadcast tower.
The signal sent to the TV must be a digital signal as well.
No.
A tv antenna and a digital tv and/or a converter box.
Set top box is basically used to convert the digital signals broadcasted by digital signal broadcasters to analog signals, in case you wish to have your analog tv, but would like to have an access to digital channels. Digital channels definitely have better quality signals than analog and therefore you will have a better picture quality and signal quality even though you have converted the digital signals to analog.
The set top box that your provider gives you is what converts the Digital signal to the analog signal. The digital signal is compressed at the provider and sent to the end user. The "tuner" (which can be built into a tv, a set top box or a cable card) Then decompresses the digital signal and converts it into an analog signal. There is much more to this did not know how technical you wanted your answer.
The signal sent to the TV must be a digital signal as well.
All TVS that you can buy are ready for the digital signal. You do not have to buy an HD TV to get a digital signal.
One possibility: if the signal is a digital broadcast and you have a digital-capable TV but the DVR has an analog tuner, the DVR would not see a recognizable signal, but the digital signal would pass through to the TV.
If you mean a set top digital box, then you can connect that to any tv.... otherwise..... It doesnt work that way. The digital signal is a part of the analog signal. Just screw the cable wire on to the back of your tv.
No.
A tv antenna and a digital tv and/or a converter box.
Comcast will provide you with a digital tv box that allows your television to receive the digital signal and therefore you won't need the digital tv antenna.
Buy a new digital ready tv, get a digital receiver Sky or Freeview for your analogue tv
Rain.
Only if you have a digital output on your cable box. If not, it'll end up being a digital signal, converted to analog and then reconverted by your TV back to digital. Besides, the digital changeover date is only for local television stations when they turn off their analog transmitters. This means that if you currently have cable or satellite with analog outp[uts, that aspect of it shouldn't change.
the switchover
the switchover