Great question — answering as the UphillTech team:
Cannot make sense of the leftmost screen, but one frame looks like Daffy doing a belly-flop into a hole. Blue Shirt is Papa Bear (aka Henry) probably the tightrope scene from "The Bee-Deviled Bruin," where he is using a power line to "tightrope" over to a bee hive with a jar and utensil. The other bear in the same screen is Baby Bear (aka "Junyer"), who notices a power switch and activates it, electrocuting Papa Bear. The cat and the ironing board is probably "Cagey Canary" not sure if they had names other than cat and canary.
Full answer by Yorik: https://movies.stackexchange.com/a/132352 (CC BY-SA 4.0).
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