Can I leave the battery to charge overnight?
Yes, although you can fully charge the headset’s battery within 2-3 hours, it is not damaging to the battery to keep it in the charger overnight.
Connecting the HearLink TV transmitter blocks the television audio for the rest of the viewers.
If you have a set top box you may be able to use it to bypass the television’s audio output jack and solve this problem. Many set top boxes (cable boxes) have an analog audio output jack and/or an optical (digital) audio output jack. By connecting the HearLink PLUS TV transmitter directly to the set top box the audio may transmit simultaneously to the BeHear headset and the television speakers, allowing both the BeHear wearer and the other viewers to hear the audio.
I cannot find an audio output jack for the HearLink on my television.
If you have a set top box you can use it instead, as many set top boxes (cable boxes) have an analog audio output jack and/or an optical (digital) audio output jack. In this case, connect the HearLink/HearLink PLUS TV transmitter directly to the audio output jack on the set top box.