How Much Does the Laboratory Component of Entry Level Physics Courses Affect the Lecture Component?

Suppose one were to ask a room full of Physics instructors: 1) What is/are the purpose(s) of Laboratories, 2) Do Laboratories have stand-alone goals or do they (in part) influence the Lectures, and 3) If you think Laboratories influence Lectures, how much? It is unlikely there would be much consensus. In this presentation, two examples are presented that show that there is a \underline {nontrivial} influence of Laboratories on Lectures. The mechanism is conceptual understanding. Also presented: some examples of tuning old Labs into Millennial-generation Labs: bigger Bang for your Buck.