Make it about family

Eat dinner with your children.
Eating dinner together as a family gives your children a chance to connect with you in both your busy lives.  Tired of getting one word answers when you ask how their day was?  Try asking a new question.  Instead ask what the Worst and Best moments of the day were.  Think about your own day, it wasn't all bad but it wasn't all great either.  It's much easier to come up with a best and worst moment.
You may discover things about your children you never knew.  A love of all things in the stars or a true dislike of playing softball.  They may not thank you for getting to know them but it will make their life more fulfilling.   One day they will appreciate you for you.. it may take them growing up and having kid's of their own, but it will happen.