You will understand the joke if you change it to Chinese:

A man took his Erha to the bar and said to the bartender: "I bet you, my dog Dogs can talk. If I win, you will buy me a drink."

Bartender: "Okay! Let's start your show!"

Man: "Say good luck first. Let’s talk.” Dog: “Wang!”

Man: “How can we see the distant scenery?” Dog: “Look!”

Man: “The best in Hunan TV” What's the host's last name?"

Dog: "Wow!"

The bartender couldn't bear it and kicked everyone and the dog out.

Sitting on the steps outside the bar, Erha suddenly turned his head and looked at the man and said, "Could it be He Jiong?"