No display when using TVout and Keypad libraries together

[GoogleCodeExporter]

What steps will reproduce the problem?
1. TVout library examples work by itself.
2. Keypad library examples work by itself.
3. Combining a simple TV output and configuring the keypad causes a blank 
display. 

What is the expected output? What do you see instead?
A simple text output ["TV.println("Test");"]. Blank display.

What version of the product are you using? On what operating system?
TVoutBeta1. Windows 8.1

Please provide any additional information below.
Commenting out "Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, 
ROWS, COLS );" line in the keypad configuration displays TV output but cannot 
use keypad.

Original issue reported on code.google.com by [email protected] on 13 Nov 2014 at 4:36