I second 'make it a priority', and find an exercise routine you like. I no longer have any sympathy for people making an excuse for physical fitness. I have 1 year old twins, and work full time. When my wife was pregnant I heard all the time, "you can forget about all the running you do once they come!" One year after they are born, I've been running 5 days a week, 55 miles per week, every week, and could EASILY do more. In fact, I sort of have been, after starting to follow this forum I probably walk an extra 10 miles a week instead of driving.
I run at 7:30pm, immediately after they go to bed. Then wake up at 4:30AM on the weekends for my long run (15 to 20 miles). Then come home, shower, spend 20 minutes sitting around to recover a little, then play with my kids generally all day. It puts a little hardship on my wife who will work her grocery shopping or visiting friends around the schedule, but it's not too bad.
Probably 2 runs a week I complain about not wanting to run, I'd rather lay on the couch and do nothing, but I push myself, then my wife pushes me, to just go outside and give it a shot. 9 times out of 10 I'm able to do my full work out.
I watch on average maybe 1.5 hours of tv a week (30 minutes spread out throughout the week on news coverage of the weather, and 1 hour of some tv show I might like). The only thing that has taken a hit that I miss doing is jigsaw puzzles and reading. I used to read 2 books a week, now I'm like 1 every other. The puzzles are more a factor of kids and finding space to do them without them eating the pieces...