Everything You Need to Know About the Final 3 How I Met Your Mother Episodes!

We're just three episodes away from the end of an era.

How I Met Your Mother's nine-year journey of drunken debacles, slap-tastic shenanigans and postponed revelations is almost over, and we're already reaching for the tissues. As of now there are still so many questions that need answers and only two more wedding weekend hours to tell them!

To help prepare you for the mother of all finales, we caught up with the cast and creators of the CBS smash at Saturday's PaleyFest celebration and to find out absolutely everything you need to know about How I Met Your Mother's final three episode. Read on for scoop on the final slap, whether or not Robin Sparkles will return, updates on your favorite forgotten characters and The Mother's fate.

The First Date: In tonight's practically perfect episode, viewers will get to witness a truly butterflies-in-the-stomach moment: Ted (Josh Radnor) and The Mother's (Cristin Milioti) first date. Some things to look forward to: Ted's complete disregard of "the three days rule," an awkward encounter with an ex, and what appears to be the first [spoiler!]. Come on, we can't give everything away!

Emotional Overload: Radnor exclusively revealed to E! News that the table-reading for the final How I Met Your Mother episode was an extremely emotional, yet amazing moment. "I think there wasn't a person in the room that didn't get a little choked up on multiple levels," the actor shared. Fun-Fact: the cast was presented with special, custom-made tissue packages that said, "Let it all out—no questions asked."

Character Check-Up: Ever wonder whatever happened to Sandy Rivers (Alexis Denisof), Zoey Pierson (Jennifer Morrison), Scooter (David Burtka) and many other fan-favorite recurring characters?! Get excited because tonight's episode, "Gary Blauman," will provide a plethora of answers in an amazing "two-minute date"-styled reveal.   

Robin and Barney Will Say "I Do": Some fans have been questioning whether or not Robin (Cobie Smulders) and Barney (Neil Patrick Harris) will actually tie the knot after the longest wedding weekend in TV's history. However, we're here to assure you, Robney fans, that we will definitely get to hear some heartfelt and tear-jerking vows. When asked to recall one of his all-time favorite HIMYM moments, Harris spilled, "Getting to say my vows to Robin Scherbatsky was a highlight." Aww!

The Return of a Doppelganger: Seeing a HIMYM doppelganger is like seeing a unicorn—it's extremely rare and magical as hell. Before the series' end, fans will see at least one of the gang's eccentric identicals and it will without a doubt bring a smile to your face.

The Final Slap: Better brace yourself, Barney because creators Craig Thomas and Carter Bays have not forgotten about that final slap! "It happens, we didn't forget," Thomas said to a cheering croud. "It will happen." We'll go ahead and spill that the final slap will appear in one of the final two episodes and will be the best one in the series' history!

Robin Sparkle's Return: It's a well-known fact that there will likely be riots in the streets if Robin Sparkles does not appear for one last memorable performance. Unfortunately, the creators were particularly cagey when asked if there were any more musical numbers coming this year. However, way back at the HIMYM Comic-Con panel last July, Thomas teased, "We can't confirm nor deny but it's a wedding and people sing songs at weddings." We're going to put on our jelly bracelets and our cool graffiti coat just in case, because we have a feeling we haven't seen the last of our favorite Canadian pop star.

The Final Scene: Milioti revealed that the very last scene of How I Met Your Mother was a touching and tearful moment of déjà vu. This scene, which features The Mother and Ted, was the exact same scene that Milioti performed during her initial audition. "To have that be the last thing...I could barely get through it," she shared. "[It was nice] to have it come that full circle." However, keep in mind that this scene may not be the highly anticipated Farhampton train station meeting, but an entirely different moment in their romantic history.

Lily and Marshall's Happy Ending: We've loved watching Lily-Pad and Marshmallow's one-of-a-kind relationship over the past nine years and Alyson Hannigan exclusively tells us that fans will be beyond pleased with their final scene together. "Aww, it's so nice," the star gushed. "I love that Marshall (Jason Segel) and Lily are always so supportive of one another, and in the finale, you'll see…You'll get a lot of answers to stuff you didn't even know you were asking."

"Blah-Blah": In addition to getting an update on some of our favorite recurring characters, fans will also get an answer to the question that has been haunting Ted for years: What was Blah-Blah's real name?!  

The Lucky Penny: The internet practically exploded a few weeks ago when fans discovered that Ted and The Mother had named their daughter Penny—appearing to be a direct connection to the "Lucky Penny" that Ted picked up way back in season two. Milioti exclusively confirmed that this was no coincidence saying, "I loved [that her name was Penny], I loved it. Yeah, it was really good. Really, really good." When asked if this revelation will be explicitly explained, Militoti revealed, "No, they don't. That's just for fans."

The Mother's Fate: In recent weeks, more and more fans have been hypothesizing about the How I Met Your Mother theory that we hope we're wrong about, speculating that The Mother is actually dead. Thomas addressed the issue early in the PaleyFest panel, but also managed to evade a direct answer saying, "It's surprising. It's a curve ball and really strange for a sitcom on Monday nights on TV. Stay tuned for two weeks and we'll see what happens." However Rador exclusively shared that he was more than happy with the series' ending. "It's a great two-part episode and yeah. I'm a fan of a show, so I wanted it to end well, and I'm glad it did. 

How I Met Your Mother airs Mondays at 8 p.m. on CBS.