Looks like you are getting both sides here. I am one that has to have the tv on for noise. Even when my kids are at daycare twice a week and I am working in my office, I have to have the tv on in the other room. Probably more of a habit than anything. My boys have always watched tv. BUT, they do not constantly watch it. Half the time they are running around playing or in their room playing with toys or whatever. When they were younger about your sons age, they pretty much watched all educational shows on PBS or videos that was teaching something. But I have to say that I am a game show junkie. When the boys were younger, they are 4 now, I used to watch alot of the GSN Channel (game show network). My one son loved all the lights that flashed and the different colors. Worked out great when trying to get dinner going. Anyway, at that time, they had alot of games with letters in them. Kind of like Wheel of Fortune. Anyway, I started my boys in daycare twice a week for more socialization when they were 20mos old. When they were about 2yrs, my one son and I were watching tv and a commercial came on that had numbers flashing on the screen. He started saying the numbers. I was in shock. This had never happened before. I got some paper and made some flash card type things and penciled out 1 thru 10 on them. He new almost every one of them. I then grabbed a magazine and pointed out some letters, he probably knew about 75% of them. I showed my husband and of course we thought we had a genius on our hands. lol. I thought that their daycare must be teaching that to them already, but for them to get that much out of the daycare with only 2 days a week seemed crazy. I questioned their teacher about and she said that they do not do recognition in that class and that it was the next class that they teach that. Mind you, they do have ABCs and 123s all over the walls. I then walked my son over to one of the charts and showed her how talented they were, hahaha, and she seemed to be floored. So I guess what I am saying here, it that if the tv is educational then some tv is not bad. When its nice enough to be outside, I am turning off the tv and shoving them outside.
As far as the birthday thing goes. I wouldn't worry about the character birthday. They have plenty of other idea out there. You can just do a balloon theme or something. Or a dinasour theme. Have fun with it.
Updated
Looks like you are getting both sides here. I am one that has to have the tv on for noise. Even when my kids are at daycare twice a week and I am working in my office, I have to have the tv on in the other room. Probably more of a habit than anything. My boys have always watched tv. BUT, they do not constantly watch it. Half the time they are running around playing or in their room playing with toys or whatever. When they were younger about your sons age, they pretty much watched all educational shows on PBS or videos that was teaching something. But I have to say that I am a game show junkie. When the boys were younger, they are 4 now, I used to watch alot of the GSN Channel (game show network). My one son loved all the lights that flashed and the different colors. Worked out great when trying to get dinner going. Anyway, at that time, they had alot of games with letters in them. Kind of like Wheel of Fortune. Anyway, I started my boys in daycare twice a week for more socialization when they were 20mos old. When they were about 2yrs, my one son and I were watching tv and a commercial came on that had numbers flashing on the screen. He started saying the numbers. I was in shock. This had never happened before. I got some paper and made some flash card type things and penciled out 1 thru 10 on them. He new almost every one of them. I then grabbed a magazine and pointed out some letters, he probably knew about 75% of them. I showed my husband and of course we thought we had a genius on our hands. lol. I thought that their daycare must be teaching that to them already, but for them to get that much out of the daycare with only 2 days a week seemed crazy. I questioned their teacher about and she said that they do not do recognition in that class and that it was the next class that they teach that. Mind you, they do have ABCs and 123s all over the walls. I then walked my son over to one of the charts and showed her how talented they were, hahaha, and she seemed to be floored. So I guess what I am saying here, it that if the tv is educational then some tv is not bad. When its nice enough to be outside, I am turning off the tv and shoving them outside.
As far as the birthday thing goes. I wouldn't worry about the character birthday. They have plenty of other idea out there. You can just do a balloon theme or something. Or a dinasour theme. Have fun with it.