Abstract: Techniques that relate to selecting content for playback are disclosed in various implementations. The techniques may include receiving, at a computing device and from a primary electronic content source, a first input signal for playback by a presentation device. The techniques may also include analyzing information that is indicative of content represented by the first input signal to determine whether the first input signal is intended for playback by the presentation device. The techniques may also include causing the presentation device to play back a second input signal from a backup electronic content source in response to determining that the first input signal is not intended for playback by the presentation device.

Abstract: Techniques that relate to selecting content for playback are disclosed in various implementations. The techniques may include receiving, at a computing device and from a primary electronic content source, a first input signal for playback by a presentation device. The techniques may also include analyzing information that is indicative of content represented by the first input signal to determine whether the first input signal is intended for playback by the presentation device. The techniques may also include causing the presentation device to play back a second input signal from a backup electronic content source in response to determining that the first input signal is not intended for playback by the presentation device.

Abstract: Digital signage transaction systems and methods are therefore provided. An illustrative transaction method can include accessing, via a computing device, a plurality of digital sign files disposed within a repository. The transaction method can further include communicating at least one external selection criterion to the computing device. Responsive to the at least one external selection criterion, selecting at least a portion of the digital sign data files and communicating at least one of the portion of selected digital sign files from the repository to a display device.