Don't have a video, so.....
Target the next root note - miss it - and walk up or down to it. Be there on the 4th beat.
Many ways to do this - pick your favorites. I to IV piece of cake If I is C then C#, D, up to E and land on F. IV to V take some thought - most of the time I'd just back up to E then F, F# and land on G. V to I couple of ways back I normally just sound the V then drop down a string and walk down (back) to the I.
Course I'm using "the box" and thinking interval numbers.
G-|----|--2-|----|--3-|--4-|----|----|
D-|----|--6-|----|--7-|--8-|----|----|
A-|----|--3-|--4-|----|--5-|----|----|
E-|----|-----|-R-|----|--2-|----|----|
I to IV..... If I'm on I (or R) then R# then R's 2, then R's 3, then R's 4 and you are on the IV. It's just a matter of working out your favorite movement patterns.
Good luck.