Watch: Sports anchor blows up at colleague on-air

You should never steal a veteran sports reporter's opportunity to talk about Space Jam.
If you dare, be prepared to suffer the consequences.

Unfortunately, no one told US news anchor Catherine Heenan that.

The KRON-TV San Francisco reporter copped the full wrath of colleague Gary Radnich live on TV after she inadvertently reported on a story that the sports caster had intended on running in his segment.

The pair exchanged words as things got more than a little awkward during the broadcast earlier this month.

After Heenan told viewers that LeBron James would be starring in the new Space Jam film, she was understandably shocked when her fellow reporter completely lost his cool only a few words into his own broadcast.

"We should tell you LeBron James is going to star in Space Jam," Radnich said while shooting his colleague his best surly, side-eye look.

"We actually - oh, are you mad 'cause I already read that? Oh, I'm sorry," Heenan said.
Radnich then became incredibly sarcastic, asking how Golden State Warriors star Steph Curry was, as if she was in fact the sports expert.

"How's Steph Curry's knee?"

"He's nursing it and it's getting better," Heenan fired back without missing a beat.

From there things began to degenerate rapidly, with Radnich's mum even brought into the conversation - an attempt to describe its ridiculousness would just not do it justice.

Here's the full transcript of the blow-up in all its overexaggerated glory.

RADNICH: "We should tell you LeBron James is going to star in Space Jam."
HEENAN: "We actually - oh, are you mad 'cause I already read that? Oh, I'm sorry."
RADNICH: "How's Steph Curry's knee?"
HEENAN: "He's nursing it and it's getting better."
RADNICH: "Mm-hmm. How long have we been friends? 23 years?
HEENAN: "I didn't know you were going to do it."
RADNICH: "Have you ever, and I'm going to say this with a smile, ever heard me say right before you came on: 'There is an irrigation problem in Gilroy?' Never."
HEENAN: "Well you'll have to talk to (the producer)."
RADNICH: "Never heard me say, 'Oh it's warm weather today.' Never. I stay in my lane."
HEENAN: "You gotta talk to (the producer)."
RADNICH: "I like Kasine (the producer). So don't try and pit me against the producer."
HEENAN: "Well, he gave me that lovely script."
RADNICH: "It's hard for me to get mad. Catherine has stayed at my mother's home, she's written my mother notes and stolen my material. So how do I get mad? Anyway how is Curry's knee?"
HEENAN: "Improving. Hey, LeBron was very good in Trainwreck, so this will be fun. Okay, I shouldn't have brought it up."
RADNICH: "Yeah it's going to be great. And Michael Jordan starred in Space Jam, as you earlier reported."
HEENAN: "I'm sorry."
RADNICH: "Darn it, its hard to be mad at Catherine though, she's a good friend of my mum's. And there's going to come a time when you have to choose between the love of your mother and your mother's friends, and the honour and dignity of crime. We may have reached that level."
HEENAN: "Oh, please."
RADNICH: "OK let's do the story again then. In the last two minutes, Curry is still about the same, he's got a sprained knee."

Looks like they will have to rule Space Jam off the list of water cooler topics.