According to the Power Rule of Exponents, \((a^m)^n = a^{m \cdot n}\). In this case, we have \((19^4)^0\).
Using the Power Rule:
\[ (19^4)^0 = 19^{4 \cdot 0} = 19^0 \]
Now, any non-zero number raised to the power of 0 is equal to 1. Therefore, we can also state:
\[ 19^0 = 1 \]
However, since you asked for an expression that includes exponents, the simplified equivalent expression is:
\[ 19^0 \]