overiding arduino commands with radio control

I am building a gps guided vehicle using a arduino and gps reciever. However, I am putting a camera on it to monitor location. I want to be able to take radio control of the rover if it gets stuck. My plan is to use transisters to switch between the arduino output to the servos and rc rx output to the servos. As far as I know, this would pe the easiest way. Just hook a digital pin to the transister base, and pull it high or low to swap signals. Would there be an easier way?

You might want to look in forums like DIY drones for what others have done.

I hase looked around, other builders have used a variety of modules and code. After looking at all sorts, I figured the transister switch seemed to be the easiest, lightest code solution. Kiss principle. However, I figured there might be an easier way.