The curious user can then examine different section versions in the tree to find out exactly what changed. Below is EIT section version 7 expanded in SI/PSI tree.
This approach can also be applied for table sections like PAT, CAT, PMT, NIT, SDT, NIT etc. In this example I used EIT because the section version change can be observed after scanning for a relatively short period of time. For the other table section types one usually have to scan for a significantly longer time to catch a section version change.