If you were looking for a book that explains the architecture and programming of the PIC microcontroller, with an emphasis on PIC18 family, get PIC Microcontroller and Embedded Systems by Mazidi, Mckinaly and Causey. The book shows plenty of programming examples written in Assembly and C using MPLAB IDE and with detailed explanations of almost each line of code and what it does and what happens inside the PIC chip (how the program counter works, what register changed and why... so on). It takes you from the zero point of teaching the architecture of the PIC microcontroller, how to write an assembly program and goes on and on up to the last few chapters that focus on teaching some basic applications like motor control, interfacing a DS1306 RTC chip using SPI protocol, LCD and keypads.
I know that you asked for videos, but I doubt that you would find everything on a video on the internet. You must have a complete book that teaches you from the zero point.