Family Game Night 4 The Game Show

Grinding this out, and figured I'd give some tips to speed up the process for people looking to just get it done. Play single player, since it allows you to skip some things, and it's generally quicker with the controller. You can skip many intro/outro scenes using the A button.

Connect 4 Basketball- Skip the intro by pressing A. Shoot straight right away, and you'll hit the middle. Just build straight up, or to one side if you get blocked. Should be very easy to win both rounds quickly if you can shoot straight and quicker than the AI.

Sorry! Sliders - You can skip the intro as soon as the guy starts skating around. I found the fastest way is actually to just lose both rounds intentionally. If you slide over to one side and shoot diagonally across to the back of the other side, your shot should hit and slide around the outside, giving you no points each shot. This mostly to make sure you don't have a tie and have to play an extra round, since this is the most time consuming mode. They are quite easy to beat however, if you'd rather just do that.

Yahtzee Bowling - You can skip the intro and outro, as well as the other player's shots by pressing A. If you have the other achievements already, the quickest way is to throw a ball, and just press X and confirm to keep all the pins. Skip the other player's throws, and at most you'll only have to throw 3 balls (2 rounds + tiebreak), instead of 6-9 balls.
If you still need the Yahtzee, just play normally. If you just need pins knocked down, throw a ball, select all pins, throw the next one, and repeat again for 15 pins each round x2 (or 3) rounds. This really isn't necessary though, since I got the achievement for 600 pins knocked down about 1/2 way through the 50 game shows just playing normally trying to get the Yahtzee.

Bop It - You can hit A to skip the intro and outro scenes. Put down your controller and go get a drink for 45 seconds. Seriously, the fastest way to do this is to not play it. If playing the AI, you'll average a round between 40-60 seconds. If you just let them beat you, it's almost always 18-20 seconds. I found this saved me up to 30 seconds/round x2 rounds, or a minute per game show, which adds up quickly over 50x.

Scrabble Flash - Same as the others, press A to skip the intro. I hit pause as soon as I saw the letters, then used this site; http://www.scrabblefinder.com/
Just try to make 5 letter words, game ends at 25 points. You can always try to get 24 points, then another 4-5 letter word to work towards your 1500 points achievement at the same time. Use common words first before the AI does, they usually don't use more obscure words.

Using these tips, I was completing game shows in about 12 minutes (5/hr), as opposed to 4/hr (max) playing regularly. Hope this helps some people out.

Start a 1 Player Game Show. There are a few things you can do to speed up your grind, and these are broken up into all the different activities. Remember to spam A whenever you can during intermissions as the majority of 'Cutscenes' you can skip, whilst others for some reason you cannot. The result of each game does not matter, so this guide is going to be focused on getting through the Games as quickly as possible, regardless of the result.

Connect 4: Simply spam shoot at the middle row that you should be perfectly aligned with at the start of the game. If the computer starts to show interest in your space, just simply move to the far left or far right and continue your spamming there.

Boggle: This comes down to choice of whether you want this game to be quicker or easier. What you can do is just leave your game running whilst in this mode and allow the computer to do the work, although this will take twice as long, it gives you a chance to have a break and maybe go check on the oven. Another method is to instead use Scrabble-Solver.com and type your letters into the box provided, using this you can enter all the words with little to no effort, taking note of which words the computer steals first.

Bop it: To be blunt, the computers suck at Bop it, so your best bet is to just go all out; plus, I found that if you fail the command on purpose, the AI intentionally throws away their win, causing the round to repeat itself.

Sorry Sliders: The Longest of Games; shoot your slider the second you can and spam A until you are allowed to shoot again. This game comes down to luck as you might win, but then you might lose at the same time, and the result will cause this Game to take different amounts of time.

Yahtzee: The easiest of the games; shoot your ball into the pins and wait until you are shown your numbers, then press X and A to start the computers turn. As soon as the computer begins to push their ball, press A to skip their go entirely and be provided with a screen of their results instead.

All in all, this is going to take around 10 hours to grind due to the nature of the unskippable intermissions. I Grinded this while sorting out my room as the majority of the Games do not require that much input, so I would recommend you go for this while doing something else to help reduce the repetitiveness.