Sony SLV-795HF - Manual (Page 68)

Additional Operations
68
When the timer settings overlap
The program that starts first has priority and the second program starts
recording only after the first program has finished. If the programs start at
the same time, the program listed first in the menu has priority.
Program 1
Will be cut off
Program 2
Program 1
20 seconds
Program 2
20 seconds will be cut off
Checking/changing/cancelling timer settings (continued)