An audio playback device, comprising: an audio output device configured to generate audio signals received from a plurality of signal sources, including a television and a network-based audio information source; characterized by further comprising: a device interface configured to: interface with the television via a first wired or wireless connection (614, 812) and to receive audio data and control messages from the television via the first wired or wireless connection (614, 812); and interface with the network-based audio information source via a second wired or wireless connection; and a source selector configured to: in response to receiving, from the television via the first connection (614, 812), a first message, change a signal source from which audio signals are generated by the audio output device from the network-based audio information source to the television such that the audio output device outputs audio received from the television; and in response to receiving, from the television via the first connection (614, 812), a second message based on a volume command input to the television for changing audio volume, changing a volume of audio from the television that is output by the audio output device according to the volume command, wherein the second message is based on the volume command from a user input device configured to communicate with the television. an audio output device configured to generate audio signals received from a plurality of signal sources, including a television and a network-based audio information source; characterized by further comprising: a device interface configured to: interface with the television via a first wired or wireless connection (614, 812) and to receive audio data and control messages from the television via the first wired or wireless connection (614, 812); and interface with the network-based audio information source via a second wired or wireless connection; and a source selector configured to: in response to receiving, from the television via the first connection (614, 812), a first message, change a signal source from which audio signals are generated by the audio output device from the network-based audio information source to the television such that the audio output device outputs audio received from the television; and in response to receiving, from the television via the first connection (614, 812), a second message based on a volume command input to the television for changing audio volume, changing a volume of audio from the television that is output by the audio output device according to the volume command, wherein the second message is based on the volume command from a user input device configured to communicate with the television. a device interface configured to: interface with the television via a first wired or wireless connection (614, 812) and to receive audio data and control messages from the television via the first wired or wireless connection (614, 812); and interface with the network-based audio information source via a second wired or wireless connection; and interface with the television via a first wired or wireless connection (614, 812) and to receive audio data and control messages from the television via the first wired or wireless connection (614, 812); and interface with the network-based audio information source via a second wired or wireless connection; and a source selector configured to: in response to receiving, from the television via the first connection (614, 812), a first message, change a signal source from which audio signals are generated by the audio output device from the network-based audio information source to the television such that the audio output device outputs audio received from the television; and in response to receiving, from the television via the first connection (614, 812), a second message based on a volume command input to the television for changing audio volume, changing a volume of audio from the television that is output by the audio output device according to the volume command, wherein the second message is based on the volume command from a user input device configured to communicate with the television. in response to receiving, from the television via the first connection (614, 812), a first message, change a signal source from which audio signals are generated by the audio output device from the network-based audio information source to the television such that the audio output device outputs audio received from the television; and in response to receiving, from the television via the first connection (614, 812), a second message based on a volume command input to the television for changing audio volume, changing a volume of audio from the television that is output by the audio output device according to the volume command, wherein the second message is based on the volume command from a user input device configured to communicate with the television.