The Holographic Excitation - S6-E5
Corrected entry: Penny observes that the pencil in the hologram is sharp but looking closely at the hologram shows that it's not.
The Holographic Excitation - S6-E5
Corrected entry: When Sheldon has the tea kettle at any time, there are stage lights reflected on the pot.
Correction: The pattern on the teapot suggests that the spots are actually overhead lights in the kitchen. The patterns are constant throughout the scene and the same at every angle whereas crew's spotlights have different placements for different angled shots.
Correction: She doesn't say that about the hologram; she says it about the actual pencil. Which it is, as Leonard puts the pointy end into the table that has equally spaced out holes in it, making it stand upright. The laser can't see below the hole in the table, which is why it doesn't appear to have a pointy end in the hologram.
Knever