One thing I think is helpful to keep in mind is that you should not let yourself think that your marriage is based on being 'in love.' If you aren't feeling it, you work on your feelings and the relationship don't get rid of the marriage.
What does he say when you tell him he plays video games 8 hours a day and you want some of his time. Watching a 30 minute show sitting next to you is not a quality of spending time with you. If that's spending time together, why not play video games with him. That is probably more interactive than watching TV, since you can comment on the game and who is winning, depending on what it is. Still, that isn't that great of a way to interact with your partner.
If you tell him you want to spend more time with him, and he agrees to it, maybe you can go out and do something active, like go a for a walk or something, and spend some time talking.
When you do talk, what is the talking like? Do you spend the whole time talking about how he isn't doing a good job as a husband because he always plays video games. A half an hour of 'here is why you don't measure up to my standards' is every time you talk going to make him want to get out of there and play video games. You've got to spend some time talking about something neutral or pleasant. Pointing out the problem once when you really have his ear may be helpful. Talking about it all the time is going to wear him down fast.
Some men avoid conversation and interaction with their wives when the interaction is often negative or critical. My wife has gotten into moods when she is pregnant or hormonal, or when we were spending some time at my mom's (her mother-in-law) when she'd get stressed (especially during periods of unemployment) where she'd want to talk for hours, stuff that from my perspective was very negative and sometimes critical. So I just didn't want to talk. We worked through that.
Try to spend some time doing enjoyable stuff when you spend time together. There are some easy buttons to push with men. Most men like sex with their wives, so that is something you can do. If you way 'Let's spend time together' but his needs in that area aren't being met, that may just frustrate him. 'Hold me for a while' is okay too. As a man, I don't mind that. That's nice. Of course, if it is just that without the sexual needs being met-- frustration again. But as long as the other area is okay, a man holding his wife, kissing, or whatever, is enjoyable. You can also spend time saying encouraging things to him. Think of 10 or 20 good things about him. Tell him something positive about him, then kiss him, then say another one, and so on. If it's fun, and you say, "Can you spend some time with me," he may just say, "Okay, let me pause the game" and then he runs in the room to be with you.
A man coming home from work and spending 8 hours on a video game doesn't seem like a balanced life to me. Ideally, he should be spending time with family, doing something to earn extra income, or spending some time volunteering for some ministry related stuff. If he doesn't do a lot of serious productive stuff, at least you might be able to offer him some time doing hobbies besides video games that you could do together. You could bowl. You could go for a walk together. In the summer, if you had a boat or something, a canoe, if you lived near water, for example. What about a church cell group? What about a church prayer group? There are community volunteer activities you could do together, too.