The development of digital video broadcasting (DVB) has revolutionized how we consume media. However, the technical underpinnings of scanning for channels often remain a mystery to the average user. At the heart of this process for Linux-based systems is dvbv5-scan

For example:

If you've ever delved into the world of digital TV on Linux, you’ve likely encountered the DVBv5 tools. Among them, dvbv5-scan is the powerhouse used to find available channels (services) on your DVB-C, DVB-S, DVB-T, or ATSC network.

Key Parameters: An initial file must include essential keys like FREQUENCY, MODULATION, BANDWIDTH_HZ, and DELIVERY_SYSTEM to be functional. ISDB-T scanning with tsscan gives no results #578 - GitHub

The initial file provides the "seed" that allows the scanner to map out the entire channel lineup. Anatomy of an Initial Tuning File