Honey, It's the Ghostest With the Mostest

S2 E19: Wayne accidentally summons up the ghost of his dearly-departed Uncle Cosmo, an eccentric inventor who loved science and wore pie plates on his head. Fortunately, ghostly Uncle Cosmo is only visible to Wayne. Unfortunately, Uncle Cosmo has decided he was called back to serve as the Szalinskis' guardian angel. Turns out nephew Waynie could use some help since his new boss at Jentech has hired the Infomercial King Trace Cagney as Wayne's new supervisor. When Cagney's latest gadget -- a hot dog hurler -- fails, he gets Wayne fired for sabotage.