How to fact-check while you're recording
A wrong number costs you three times. Once when it goes out unchallenged and the audience believes it. Again in the edit, where fixing it means cutting around a sentence the whole answer depends on. And a third time when someone clips the wrong bit and it travels without your correction attached.
The cheapest place to fix it is in the room, about four seconds after it is said. Almost nobody is set up to do that, and the reason is not laziness. It is that checking a claim has always meant leaving the conversation.
Why live checking is treated as impossible
Shows with real fact-checking practice do it either before or after, not during. Public radio teams will tell you they research the guest hard, prep the host, and check claims in the interview itself only because the interview is not live, so there is time to stop.
That is the honest state of the craft. If you can pause, you can check. If you cannot pause, you get one shot at noticing, and noticing is the easy part. Verifying is what takes ninety seconds you do not have.
So most producers pick one of three compromises.
Pre-load everything. Read the guest's book, pull their previous claims, print the numbers you expect to come up. This works and it is the highest-value thing on the list. It also only covers what you predicted.
Note it and fix it in pickups. Write the timestamp, keep going, and record a correction at the end. Reliable, cheap, and it produces the slightly awkward "one clarification before we wrap" segment that everyone recognises.
Interrupt. Effective and expensive, for reasons worth being precise about.
The interruption problem
Interrupting is the move producers avoid, and not because of politeness.
A host is running two processes at once: listening for meaning, and planning the next question. Both use the same attention. Put a third input into that, especially a voice in their ear, and the planning process drops. Broadcast people are direct about this. Even an experienced host gets thrown by someone talking to them mid-question, and what you get back is a host who has lost their thread and now sounds careful for the next five minutes.
So the correction lands and the interview flattens. You traded a wrong number for a worse conversation, which is sometimes right and often not.
The cost is also asymmetric in a way that is easy to miss. Interrupting to deliver something urgent is worth it. Interrupting to deliver something merely interesting is close to pure cost, and in the moment those two feel identical.
Decide in advance what is worth stopping for
Write this down before the session, because you will not reason well about it live.
Stop for: a factual error the show would have to correct publicly, anything legally risky, a misattributed quote, and a wrong number that the rest of the argument rests on.
Do not stop for: a date that is off by a year in a story where the year does not matter, a rounding difference, a mispronunciation (note it, fix in pickups), or a claim you merely disagree with. That last one is the trap. Disagreement is not error, and interrupting to argue is a different act than interrupting to correct.
How to correct on air without wrecking the take
If it has to happen live, the shape matters.
Hand it to the host rather than the guest. The host can absorb a correction and re-ask; a guest who gets corrected by a third party gets defensive, and defensive guests get shorter.
Give the host the replacement, not the problem. "That figure is 22 percent lower, not higher" is usable in one breath. "I think that number might be wrong" starts a conversation about whether it is wrong, which is worse than saying nothing.
Let the host own it. The version that sounds fine is "let me push back on that, my understanding is the opposite." The version that sounds like a production error is anything that mentions checking.
And time it to a boundary. The gap after an answer ends costs almost nothing. The gap in the middle of one costs the answer.
Prep the claims you can predict
Most correctable errors are predictable, which makes this the part with the best return.
Go through your rundown and mark every place a number, a date, or an attribution is likely to appear. For each one, write the correct value and the source in the same place your notes live. You are not trying to cover the conversation. You are trying to make the twenty most likely claims instant instead of ninety seconds.
If the guest has been on other shows, listen to how they told the same story there. Recurring claims get repeated almost verbatim, and the ones that are wrong are wrong every time.
Where Tally fits
The reason interrupting is the only live option is that the answer has to travel through you. If it reaches the host directly, the tradeoff mostly goes away.
Live intelligence means the right information appearing on screen while you are still talking. During a session the desktop app puts a short line of text in front of the host: the guest's bio when a name gets fumbled, the episode where the show covered a topic before, a flag when a number that just went past looks wrong. It is silent and it stays out of the recording chain.
For a producer that changes the job in one specific way. You do not have to choose between an uncorrected claim and breaking the host's concentration, because the correction can arrive without you speaking. You stay available for the things that genuinely need a human.
It is grounded in the show rather than the open web, which is the part a search engine cannot do. It knows what this show has already said, so a contradiction with something from two years ago is findable, and so is the callback nobody remembered.
It runs on macOS today and it is invite only while we onboard shows one at a time. Here is how live intelligence works. If you are also the one building the rundown, this is the host's version of interview prep, and what a producer actually costs covers which parts of the job software has and has not changed.
Tally is invite only right now
We are onboarding shows in small waves so we can set each one up properly. Leave your email and we will reach out when the next wave opens.