Claim: Rob Greenberg worked on How I Met Your Mother.
Evidence: Among the 208 episodes , there were only four directors : Pamela Fryman -LRB- 196 episodes -RRB- , Rob Greenberg -LRB- 7 episodes -RRB- , Michael Shea -LRB- 4 episodes -RRB- , and Neil Patrick Harris -LRB- 1 episode -RRB-.