High Definition Oscilloscopes include a number of powerful debugging tools, such as WaveScan advanced search and find functionality. WaveScan automatically analyzes waveforms for runts, glitches, or other signal abnormalities. It can be applied to either captured or live waveforms. It also can be used to search for patterns across multiple digital channels. Another valuable debugging tool is History Mode, or waveform playback. In History Mode, users may scroll back in time through a captured waveform to isolate problems. History Mode is always active. A single button press quickly displays all waveforms in the history buffer.