Several factors can affect this. If you are in a mobile home, the metal in the walls will interfere with the signal. Generally, we recommend that you move the antenna closer to a window. If reception is still not improved, you may need an outdoor antenna.
No. In order to connect a VCR to a receiver, the VCR must have an audio output jack. This usually comes up regarding VCR/TV combo units, which do not always have output jacks.
Speakers are connected in series when the first speaker's positive terminal is connected to the next speaker's negative terminal. Speakers are connected in parallel when all the speakers' negative terminals are connected together and all their positive terminals are connected together.